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CENTER PRESSURE [39 records]

Record 1 2025-04-30

English

Subject field(s)
  • Scientific Measurements and Analyses
  • General Mechanics (Physics)
  • Ultrasonography
CONT

The non-thermal biological effects of ultrasound imaging(e. g., pressure, cavitation) are assessed using the mechanical index(MI), defined as the maximum value of the peak negative pressure divided by the square root of the acoustic center frequency...

French

Domaine(s)
  • Mesures et analyse (Sciences)
  • Mécanique générale (Physique)
  • Ultrasonographie
CONT

L'indice mécanique correspond au rapport de la valeur maximale du faisceau ultrasonore, quelle qu'en soit la pression de raréfaction atténuée, à la racine carrée de la fréquence du transducteur, la pression et la fréquence étant exprimées en mégapascals (MPa) et en mégahertz (MHz), respectivement.

Spanish

Save record 1

Record 2 2025-01-20

English

Subject field(s)
  • Ballistics
  • Missiles and Rockets
CONT

In ballistics, the center of pressure is the point where all of the aerodynamic forces, particularly lift and drag, are equalized. If this point is behind or below the center of gravity, then the object is self-stabilizing. This is why fin stabilization works with missiles and similar military ordnance. The fins pull the center of pressure much further rearward.

Key term(s)
  • fin stabilisation

French

Domaine(s)
  • Balistique
  • Missiles et roquettes
CONT

[Le principal inconvénient] de la stabilisation par empennage [est] qu'il faut trouver de la place pour les ailettes à l'intérieur du tube, c'est-à-dire que le corps du projectile doit être sous-calibré et tiré avec un sabot ou que les ailettes se déploient après le tir.

Spanish

Save record 2

Record 3 2024-09-18

English

Subject field(s)
  • Types of Ships and Boats
  • Special Water Transport
  • Maneuvering of Ships
  • River and Sea Navigation
DEF

A comparatively small vessel with powerful engines and constructed in such a way as to be able to manoeuvre easily for towage and/or to assist in salvage operations at sea.

CONT

Tugboats are needed to pull or push large ships in confined waters such as in a harbor area and docks, and they are also needed to tow large ships on long ocean voyages.... They are capable of firefighting and salvage duties and may carry large capacity pumps for these purposes. One important design characteristic of a tugboat is its hull form and propulsion system are designed both for a given free running speed and a high thrust at zero speed. Furthermore, its upper deck layout is dictated by the need to get close into a variety of vessels and by the need to keep the towing point above the longitudinal center of lateral pressure so that a lateral pull has a minimum effect on maneuverability.

OBS

towboat; tow boat: Not to be confused with "pusher tug," which can also be referred to as a "towboat."

Key term(s)
  • tug boat
  • tug-boat
  • tow-boat

French

Domaine(s)
  • Types de bateaux
  • Transports par bateaux spéciaux
  • Manœuvre des navires
  • Navigation fluviale et maritime
DEF

Bâtiment conçu pour déplacer d'un point à un autre des bâtiments de navigation dans un port, sur un fleuve, une rivière ou en mer.

Spanish

Campo(s) temático(s)
  • Tipos de barcos
  • Transporte por barcos especiales
  • Maniobras de los buques
  • Navegación fluvial y marítima
Save record 3

Record 4 2023-02-13

English

Subject field(s)
  • Atmospheric Physics
CONT

Double-barrelled low pressure system. Ideally a low pressure system will have one distinct center where the surface pressure and height aloft are lowest at one point. Often though[, ] the low pressure system will be a broad area of lower pressure or it will have two distinct areas where the surface pressure is lowest. The term double-barrelled low pressure system means two side by side low pressure systems.

Key term(s)
  • double barrelled low pressure system
  • double barrelled low
  • double centred low
  • double-centered low
  • double centered low
  • double-barrelled low-pressure system

French

Domaine(s)
  • Physique de l'atmosphère

Spanish

Save record 4

Record 5 2022-09-27

English

Subject field(s)
  • Atmospheric Physics
  • Atmospheric, Climatic and Meteorological Phenomena
CONT

Central pressure is the atmospheric pressure located at the center of a high or low.

French

Domaine(s)
  • Physique de l'atmosphère
  • Phénomènes météorologiques, climatiques et atmosphériques
CONT

Le paramètre de référence couramment utilisé pour décrire le plus simplement une dépression ou un anticyclone est la PNM [pression au niveau de la mer] (par exemple, on qualifiera une dépression de très creuse ou intense si sa pression centrale est inférieure à 960 hPa [hectopascals] au niveau de la mer).

Spanish

Save record 5

Record 6 2022-08-31

English

Subject field(s)
  • Atmospheric, Climatic and Meteorological Phenomena
DEF

A midlevel, warm-core low pressure center that develops within the stratiform region of a mesoscale convective system(MCS) as a result of latent heat release over a multihour time period.

Key term(s)
  • meso-scale convective vortex

French

Domaine(s)
  • Phénomènes météorologiques, climatiques et atmosphériques

Spanish

Save record 6

Record 7 2021-07-14

English

Subject field(s)
  • Oil Drilling
CONT

Horizontal hydraulic fracturing is accomplished by drilling vertically to the depth of the shale formation, which is generally found between 0. 6 – 1. 5 km below the surface. When the gas-containing shale is intercepted, the drill bit is maneuvered to travel horizontally through the center of the formation for a distance of up to 1. 6km. Water, biocides, surfactants, sands, and other chemicals are forced into the borehole under extremely high pressure to induce fractures in the shale that allow gas to rise to the surface for collection...

OBS

The terms "fraccing" and "fracing," short for "fracturing," are pronounced "fracking."

Key term(s)
  • horizontal hydro fracking
  • horizontal hydro-fracking

French

Domaine(s)
  • Forage des puits de pétrole
DEF

Processus qui consiste à créer de multiples fractures le long du segment horizontal d'un puits de forage afin d'en augmenter la perméabilité et de permettre au gaz de s'échapper.

Spanish

Save record 7

Record 8 2016-12-23

English

Subject field(s)
  • Areal Planning (Urban Studies)
  • Urban Development
DEF

A growth area that is intended to provide an alternative attractive power to a major urban centre, and hence assist in controlling its growth.

CONT

Planners contemplate the development of countermagnet centers, such as the projected satellite part 70 miles downstream at Haldia, to draw population pressure from the center.

Key term(s)
  • countermagnet centre

French

Domaine(s)
  • Aménagement du territoire
  • Développement urbain
CONT

Métropoles d'équilibre : grandes villes de province que l'État s'efforce de développer pour qu'elles deviennent des centres d'attraction économique capables de fixer la main-d'œuvre et de faire équilibre au développement excessif de Paris.

CONT

La ville satellite ne résout pas le problème [de] l'extension [ce qui implique la restructuration des noyaux anciens des zones d'habitat dispersé] la politique des noyaux restructurateurs exige des investissements importants

OBS

Pôle de croissance dont l'objet est de faire contrepoids à l'attrait exercé par un grand centre urbain.

Spanish

Save record 8

Record 9 2015-04-17

English

Subject field(s)
  • Climatology
  • Atmospheric, Climatic and Meteorological Phenomena
  • Hydrology and Hydrography
DEF

An extended period of dryness; usually any period of moisture deficiency that is below normal for a specific area.

CONT

In the southeastern United States..., the summer of 1993 brought months of drought and withering heat, result of a persistent center of high pressure over Bermuda.

French

Domaine(s)
  • Climatologie
  • Phénomènes météorologiques, climatiques et atmosphériques
  • Hydrologie et hydrographie
DEF

Période anormalement sèche, suffisamment prolongée pour que l'absence de précipitation provoque un grave déséquilibre hydrologique.

CONT

La sécheresse peut se référer au climat (déficit de précipitations par rapport à la valeur normale des précipitations durant la période considérée), au sol (déficit d'humidité par rapport à la capacité au champ), ou à la plante (déficit de saturation par rapport à la teneur en eau, à la turgescence ou turgescence relative).

OBS

On écrirait mieux «sècheresse».

OBS

sècheresse : Cette graphie, puisée des Rectifications de l'orthographe recommandées par le Conseil supérieur de la langue française, est attestée dans le Petit Robert (2006).

Key term(s)
  • sècheresse
  • période de sècheresse

Spanish

Campo(s) temático(s)
  • Climatología
  • Fenómenos meteorológicos, climáticos y atmosféricos
  • Hidrología e hidrografía
DEF

Período anormal de tiempo seco, suficientemente prolongado, en el que la falta de precipitación causa un grave desequilibrio hidrológico.

Save record 9

Record 10 2014-11-05

English

Subject field(s)
  • Atmospheric Physics
DEF

The low pressure center of a tropical cyclone. Winds are normally calm and sometimes the sky clears.

CONT

The cyclone is an isolated depression about circular, the diameter of which is understood between 300 and 1000 km. Pressure in the centre can be very low ... In the centre, one finds a zone of peace, clear sky: it is the eye of the cyclone. Around the eye reign extremely violent winds, exceeding 140 km/h.

Key term(s)
  • cyclone's eye
  • cyclone eye

French

Domaine(s)
  • Physique de l'atmosphère
DEF

Région relativement calme située au centre d'un cyclone, là où la pression est la moindre.

CONT

Le cyclone comprend un centre, l'œil du cyclone, généralement clair dépourvu de nuages. L'œil est entouré d'une région très active, le mur de l'œil, constitué de cumulonimbus. L'agitation à l'intérieur de l'œil est minime, les vents y sont très faibles. Plus on s'écarte du centre, plus les vents sont intenses, ils atteignent leur maximum à 30 km du centre pour parfois souffler à une vitesse de 300 km/h, puis ils décroissent lentement vers la périphérie.

CONT

[...] avec les cyclones tropicaux on retrouve un ensemble nuageux mieux organisé, de forme quasi circulaire ayant entre 300 et 1 500 kilomètres de diamètre. On identifie au centre de ce système un secteur étroit, d'une vingtaine de kilomètres de diamètre, pratiquement dépourvu de nuages, l'œil du cyclone, où le vent faiblit très sensiblement [...]

Spanish

Campo(s) temático(s)
  • Física de la atmósfera
DEF

Zona central de un huracán tropical o tifón.

Save record 10

Record 11 2013-07-29

English

Subject field(s)
  • Occupation Names (General)
  • Ceramics (Industries)
DEF

A craftsman who shapes pottery on a potter’s wheel [or throw] and bakes them it a kiln.

CONT

There are many techniques in use for throwing ceramic containers, although this is a typical procedure : a round, moist lump of clay body is thrown down onto the wheel head or a bat attached to it. The lump is made even and forced to the centre of the wheel by applying pressure with the hands. The thrower finds the center of the clay by moving a thumb across the lump until no more friction is felt.

French

Domaine(s)
  • Désignations des emplois (Généralités)
  • Céramique (Industries)
DEF

Ouvrier (ouvrière) qui travaille sur un tour.

CONT

Les diplômés du CAP [certificat d'aptitude professionnelle] deviennent tourneurs en céramique [...] La majorité des emplois se trouvent chez des petits artisans céramistes. [...] Quand l'entreprise compte plusieurs personnes, le tourneur travaille en collaboration avec un décorateur en céramique.

Spanish

Save record 11

Record 12 2011-10-03

English

Subject field(s)
  • Motors (Machinery)
  • Turbines
CONT

The inlet bullet fairing over the center of the engine contains the probe for measuring intake pressure(Pt2) for engine pressure ratio(EPR) indication.

OBS

nose dome (engine)

French

Domaine(s)
  • Moteurs mécaniques
  • Turbines
CONT

Une prise de pression PT 2 sur le cône d'entrée d'air et 6 sondes de pression PT 7 à la sortie des turbines sont reliées à un transmetteur d'EPR.

OBS

cône d'entrée d'air : Terme uniformisé par le CUTA - Opérations aériennes.

Spanish

Save record 12

Record 13 2011-06-06

English

Subject field(s)
  • Fluid Mechanics and Hydraulics (Physics)
  • Aerodynamics and Theory of Gases
DEF

The characteristic instantaneous rise in pressure, followed by a sudden decrease, that results from [the brief and rapid movement of air or other fluid away from a center of outward pressure, as in an explosion. ]

OBS

blast: term standardized by NATO.

French

Domaine(s)
  • Mécanique des fluides et hydraulique (Physique)
  • Théorie des gaz et aérodynamique
OBS

souffle : terme normalisé par l'OTAN et uniformisé par le Comité de terminologie française du Conseil de doctrine et de tactique de l'Armée de terre.

Spanish

Save record 13

Record 14 2010-10-04

English

Subject field(s)
  • Aeronautical Engineering and Maintenance
CONT

An overpressure fuse will release if any main or center gear tire pressure exceeds 375 psi. On the nose gear, the fuse will release if tire pressure exceeds 330 psi.

Key term(s)
  • over-pressure fuse
  • over pressure fuse

French

Domaine(s)
  • Aérotechnique et maintenance

Spanish

Save record 14

Record 15 2010-02-26

English

Subject field(s)
  • Medical and Surgical Equipment
OBS

E. Foam rubber ring cushion. Slopes gently toward center for greatest comfort. Helps to relieve patient discomfort following surgery, relieves pressure areas.

French

Domaine(s)
  • Équipement médico-chirurgical
OBS

E.Fig.1.

Spanish

Save record 15

Record 16 2005-07-20

English

Subject field(s)
  • Atmospheric, Climatic and Meteorological Phenomena
DEF

The nearly permanent subtropical high of the North Pacific Ocean centered, in the mean, at 30°-40°N and 140°-150°W.

OBS

On mean charts of sea level pressure, this high is a principal center of action.

French

Domaine(s)
  • Phénomènes météorologiques, climatiques et atmosphériques
DEF

Anticyclone subtropical presque permanent de l'océan Pacifique Nord situé aux latitudes 30-40 degrés nord et aux longitudes 140-150 degrés ouest.

Spanish

Save record 16

Record 17 2003-08-01

English

Subject field(s)
  • Flight Instruments and Equipment (Aeroindustry)
CONT

This [pressure rate] controller was located below the center power quadrant, below the autopilot control head and near the floor so that it would be accessible to either crew member.

French

Domaine(s)
  • Instruments et équipement de bord (Constructions aéronautiques)
CONT

En C3, de nombreux éléments appartenant au cockpit sont plaqués contre un transformateur électrique en béton. On y retrouve les sièges pilotes, les manettes de puissance et le boîtier de commande du pilote automatique.

Spanish

Save record 17

Record 18 2003-02-27

English

Subject field(s)
  • Scientific Research Equipment
  • Engineering Tests and Reliability
  • Thermoanalysis
CONT

Thermal Vacuum Test Chamber... The purpose of the Thermal Vacuum test is to verify that the satellite will work correctly in the extreme temperatures and low pressures experienced in space. The satellite is suspended from a test fixture in the center of the tank, which is pumped out to a pressure about a billion times smaller than atmospheric pressure. The entire chamber wall can be heated and cooled to simulate the effects of solar heating when the satellite is in sunlight and the cold of outer space when the satellite is in the shadow of the Earth.

French

Domaine(s)
  • Matériel et équipement (Recherche scientifique)
  • Fiabilité, contrôle et essais (Ingénierie)
  • Thermo-analyse

Spanish

Save record 18

Record 19 2002-11-13

English

Subject field(s)
  • Heat Treatment: Intervening Factors (Metals)
  • Thermoelectricity and Thermoelectronics
CONT

The new 60-megawatt segmented arc heater, known as H3, significantly improves AEDC' s [Arnold Engineering Development Center] present arc capabilities... Arc heaters such as H3 produce the high pressures and heat fluxes required for testing thermal protection materials used for nose tips and heat shields. Arc heater tests provide information to manufacturers about the probable condition a space vehicle component would experience following re-entry into Earth's atmosphere. An arc heater is basically a large tube that high-pressure air runs through. The air is heated by discharging tens of megawatts of power using an electric arc similar to a lightning bolt. At the nozzle, or downstream end of the heater, test personnel install models or materials and subject them to simulated high pressure and temperature conditions generated by the bolt. Temperatures range from 5, 000 to 15, 000 degrees Fahrenheit, requiring each component to be water-cooled.

French

Domaine(s)
  • Traitement thermique des métaux (Facteurs)
  • Thermoélectrique et thermoélectronique

Spanish

Save record 19

Record 20 2002-06-20

English

Subject field(s)
  • Orbital Stations
CONT

CEO [Crew Earth Observations] is conducted primarily from the nadir-viewing, optical-quality window in the U. S. Destiny Laboratory Module. The window can view 39. 5 degrees forward along the axis of the Station, 32. 2 degrees aft, and a total of 79. 1 degrees from port to starboard. The window is constructed of four panes. The outermost pane, made of fused silica, is designed to withstand orbital debris and can be changed out by extravehicular activity(EVA) if it becomes damaged. The two center panes, also made of fused silica, are the primary and redundant pressure panes. The interior pane, made of glass laminate, is called the scratch or "kick" pane. This pane protects the primary pressure pane from scratches and damage caused by contact with the crew, and has an ultraviolet/infrared(UV/IR) coating to protect the crew and improve picture quality.

OBS

The two middle panes [the redundant pressure pane and the primary pressure pane] serve as the primary and secondary pressure windows, ensuring that the laboratory module stays pressurized. Each of the panes is 31.75 cm (1-1/4 in.) thick.

OBS

redundant pressure pane: term officially approved by the International Space Station official approval Group (ISSOAG).

French

Domaine(s)
  • Stations orbitales
OBS

deuxième vitrage du hublot : terme uniformisé par le Groupe de travail de la terminologie de la Station spatiale internationale (GTTSSI).

Spanish

Save record 20

Record 21 2001-09-14

English

Subject field(s)
  • Drainage and Irrigation (Agric.)
CONT

Drip Irrigation.... Water is delivered in small quantities under low pressure directly to... the root zone of the plants. You’ll need 1/2 inch polyethylene header pipe, and a roll of thin tape-like porous tubing. The header pipe connects to a garden hose and routes water through the garden. The pipe is placed either down the center or along one end of the garden. Small puncture holes are then made with a screwdriver into the header pipe at intervals corresponding to garden row. Eight-to ten-inch pieces of rubber connecting hose are then inserted into these holes. The other end of the connecting hose attaches to a length of porous tape. This tape is rolled out along each vegetable bed and cut to the same length as the row. Then end of the tape is then crimped to prevent water loss when the system is in use. Porous irrigation tape is best placed about three to four inches away from the base of the plants.

French

Domaine(s)
  • Drainage et irrigation (Agriculture)
CONT

Les rampes aplatissables sont appelées des gaines qui peuvent être simples ou doubles. On distingue divers types de gaines : - gaines perforées [...] - gaines poreuses : la paroi extérieure, composée de fibres «non tissées», laisse suinter l'eau à travers des pores de quelques micromètres. Gaines perforées et poreuses ne sont utilisables qu'à de faibles pressions et ne peuvent convenir que pour des cultures annuelles (maraîchage, fleurs) en terrain plat.

Spanish

Save record 21

Record 22 2001-07-16

English

Subject field(s)
  • Orbital Stations
CONT

CEO [Crew Earth Observation] is conducted primarily from the nadir-viewing, optical-quality window in the U. S. Destiny Laboratory Module. The window can view 39. 5 degrees forward along the axis of the Station, 32. 2 degrees aft, and a total of 79. 1 degrees from port to starboard. The window is constructed of four panes. The outermost pane, made of fused silica, is designed to withstand oribital debris and can be changed out by extravehicular activity(EVA) if it becomes damaged. The two center panes, also made of fused silica, are the primary and redundant pressure panes. The interior pane, made of glass laminate, is called the scratch or "kick" pane. This pane protects the primary pressure pane from scratches and damage caused by contact with the crew, and has an ultraviolet/infrared(UV/IR) coating to protect the crew and improve picture quality.

OBS

primary pressure pane: term officially approved by the International Space Station official approval Group (ISSOAG).

French

Domaine(s)
  • Stations orbitales
OBS

premier vitrage du hublot : terme uniformisé par le Groupe de travail de la terminologie de la Station spatiale internationale (GTTSSI).

Spanish

Save record 22

Record 23 2000-06-13

English

Subject field(s)
  • Sewers and Drainage
CONT

Highspeed, Highpressure Sewer and Pipe Cleaning. The vehicle is positioned at the manhole with hose reel above opening. A special high-pressure hose, fitted with a hardened steel jet nozzle, is introduced into the sewer. Water pressure up to 2000 lbs. psi drives the hose up the sewer against the flow. A center hole in the nozzle breaks up accumulation in front of the hose to allow for easy passage. When the hose is withdrawn, the water jets flush the sewer clean. Light materials are flushed down the line and heavy materials are deposited in the manhole for easy removal with the sanitary Hydro-Vac. A final jetting of the interior of the manhole with the high-pressure gun completes the cleaning operation.

Key term(s)
  • cleaning of the sewer system
  • cleaning of the sewage system

French

Domaine(s)
  • Égouts et drainage
CONT

Le curage des égouts élémentaires est réalisé avec une «mitrailleuse», barrage mobile en bois. Le curage des collecteurs nécessite des engins plus puissants [...]

Key term(s)
  • curage des canalisations d'égoût
  • curage

Spanish

Save record 23

Record 24 2000-03-31

English

Subject field(s)
  • Burners and Steamfitting
DEF

A power burner in which a fan, or blower, blows air at high velocity past turbulators. The gas, at regulated pressure, is released into the turbulent airstream-typically from a ring at the mouth of the burner(in which case it is also called a ring burner). The gas escapes through orifices around the periphery of the ring. Gas and air are adjusted simultaneously to maintain the proper air-fuel ratio as the firing rate changes. In high-pressure gun burners, the gas is ejected at pressures up to 15 psi from spuds located in the center of the turbulent airstream instead of at the outside.

French

Domaine(s)
  • Fumisterie et brûleurs

Spanish

Save record 24

Record 25 2000-03-31

English

Subject field(s)
  • Burners and Steamfitting
CONT

gun type burner. A power burner in which a fan, or blower, blows air at high velocity past turbulators. The gas, at regulated pressure, is released into the turbulent airstream-typically from a ring at the mouth of the burner(in which case it is also called a ring burner). The gas escapes through orifices around the periphery of the ring. Gas and air are adjusted simultaneously to maintain the proper air-fuel ratio as the firing rate changes. In high-pressure gun burners, the gas is ejected at pressures up to 15 psi from spuds located in the center of the turbulent airstream instead of at the outside.

French

Domaine(s)
  • Fumisterie et brûleurs
OBS

gun burner / brûleur à air total.

Spanish

Save record 25

Record 26 1999-12-20

English

Subject field(s)
  • Foundry Practice
DEF

A core projecting to the center of a blind riser allowing atmospheric pressure to force out feed metal.

French

Domaine(s)
  • Fonderie

Spanish

Save record 26

Record 27 1999-10-09

English

Subject field(s)
  • Aeronautical Engineering and Maintenance
DEF

A device used in thermal spraying which directs the air pattern for purposes of atomization.

CONT

... a spray gun includes a fluid adjustment which controls the fluid valve, a spreader adjustment valve, an air-valve assembly, an air cap, a fluid inlet, and an air inlet. The balance among air pressure, airflow, fluid pressure, and fluid flow is controlled by adjusting the valves concerned to provide the desired spray quality and pattern. Air flowing through the center area of the air cap and through holes near the center mixes with fluid from the fluid tip and produces an atomized spray. Air flowing from the openings in the horns of the air cap impinges on each side of the fluid spray to produce an elongated spray pattern. This pattern may be adjusted for a wide or narrow area by changing the setting of the spreader adjustment valve. The pattern can be made vertical or horizontal by turning the air cap.

French

Domaine(s)
  • Aérotechnique et maintenance
CONT

Une soupape à ressort, actionnée par appui sur la détente du pistolet [pulvérisateur], commande le débit. A partir de la source d'air comprimé, l'air entre dans le pistolet par l'orifice d'admission d'air situé au bas de la poignée du pistolet. Il traverse le corps du pistolet et est projeté dans les petits trous d'une bague déflectrice placée à l'arrière de la tête qui entoure la buse de pulvérisation. L'alimentation en air se règle par une autre soupape à ressort, située également au-dessous de la détente. ... [Une soupape, montée à l'arrière du corps du pistolet,] modifie le réglage d'une ouverture à l'intérieur du pistolet, qui règle le débit d'air traversant une seconde série de trous de l'anneau déflecteur et se dirigeant vers des orifices situés dans les deux "bossages" de la tête. Ces bossages envoient des jets d'air convergents dans le courant pulvérisé.

OBS

anneau déflecteur : terme accepté par le Comité d'étude de la terminologie des cartes de travail du DC-9.

Spanish

Save record 27

Record 28 1999-02-08

English

Subject field(s)
  • Opening and Closing Devices (Packaging)
OBS

snap-on cap.... The cap is affixed in place by pressing inward on the lug members, and released by downward pressure on the center of the cap-top, which is accompanied by a snapping sound as the lugs fly open.

French

Domaine(s)
  • Modes d'ouverture et de fermeture (Emball.)
DEF

Conditionnement à l'épreuve des enfants, du type flacon, émettant un bruit sec lors du déverrouillage par rotation de la capsule sur les crans du col.

Spanish

Save record 28

Record 29 1997-07-23

English

Subject field(s)
  • Textile Industries
  • Technical Textiles
  • Waterproofing (Construction)
DEF

Braid-over-braid packings : are manufactured to size by braiding one or more covers around a center core of braided, twisted or homogeneous material. This type, also known as multiple or round braid packings, is recommended for slow speed and high pressure applications, valve stems, expansion joints and high-temperature groove gasketing....

French

Domaine(s)
  • Industries du textile
  • Textiles techniques
  • Étanchéité (Construction)

Spanish

Save record 29

Record 30 1993-11-26

English

Subject field(s)
  • Cycling
DEF

One of three kinds of rim or caliper brakes whose action originates above the center of the wheel, using two pivot points, one for each caliper arm. They are activated by means of a brake cable connected at one end to the brake lever mounted on the handlebar and at the other end to a cable anchor. From the cable anchor a transverse cable runs to both sides of the brake assembly and attaches to the caliper arms. When the brake lever is squeezed, the cable retracts, lifting the cable anchor and causing both calipers to press rubber blocks against the wheel rim simultaneously, stopping the bicycle through pressure and friction.

CONT

Centerpull brakes require less lever force but more lever motion, giving them a yielding feel and requiring more accurate, and hence more frequent adjustment.

CONT

Center-pull brakes can easily be centered by squeezing the shoes and centering the brake cable where it meets the short center cable.

French

Domaine(s)
  • Cyclisme
DEF

Une des trois catégories de freins à friction sur jante conçus avec deux articulations et dont l'action est déployée au-dessus du centre de la roue. Ils sont actionnés par des manettes de freins placées sur le guidon; le câble qui relie les mâchoires de freins aux manettes a son point d'attache sur le chape-relais, au-dessus des mâchoires.

CONT

Dans ce souci constant d'efficacité, les cyclocrossmen choisissent des freins à tirage central et à tasseaux, ce qui libère la fourche et les haubans des risques d'obturation.

CONT

Freins à étrier avec tirage central : Les leviers sont fixés par des vis sur des tasseaux brasés au cadre et articulés par un roulement lisse sur la vis de fixation.

Spanish

Save record 30

Record 31 1990-07-18

English

Subject field(s)
  • Packaging Machinery and Equipment
  • Opening and Closing Devices (Packaging)
CONT

Capping machinery.... A pneumatic chuck contains a round flexible ring with a hole in the center. The cap enters the hole when the ring is in its relaxed state. When air pressure is applied, the ring compresses and grips and holds the cap while it is moved to the bottles and screwed on.

French

Domaine(s)
  • Machines et équipement d'emballage
  • Modes d'ouverture et de fermeture (Emball.)
DEF

Élément d'une chaîne de bouchage qui prélève les capsules filetées à l'aide d'un système à air comprimé, afin de les positionner sur la bague des conditionnements pour ensuite visser ces dernières.

Spanish

Save record 31

Record 32 1990-01-29

English

Subject field(s)
  • Taps and Plumbing Accessories
  • Heating
CONT

Impulse Trap. Under normal loads the discharge from this trap is intermittent. When the load is heavy, however, the discharge is continuous. This type of trap may be used on any equipment where the pressure at the trap outlet does not exceed 25% of the inlet pressure.

CONT

The impulse steam trap operates on the principle that hot water under pressure tends to flash into vapor when the pressure is reduced. When hot water is flowing to the trap the pressure in the control chamber is reduced, causing the valve to rise from its seal and discharge the water. As steam enters the trap, the pressure in the chamber increases, causing the valve to close, thus reducing the flow of steam to that which can pass through the small center orifice in the valve.

French

Domaine(s)
  • Robinetterie et accessoires
  • Chauffage
DEF

Purgeur thermodynamique dont l'obturateur constitué soit d'un piston, soit d'un disque, s'ouvre sous l'action des condensats pour en permettre l'évacuation, puis se ferme à l'arrivée de la vapeur.

Spanish

Save record 32

Record 33 1988-10-31

English

Subject field(s)
  • Closing Devices and Nozzles (Mechanical Components)
DEF

Spring-loaded device which permits fluid flow in one direction when a center pin is depressed and in other direction when a pressure difference exists.

French

Domaine(s)
  • Obturateurs et buses (Composants mécaniques)

Spanish

Save record 33

Record 34 1988-06-14

English

Subject field(s)
  • Skating
CONT

In the starting position one rests on the inside edge of the skates with "correct center of pressure". The body is bent in the direction of the skates, the back is rounded, right arm is lifted and held at shoulder height. The left arm is a little lower; the hand is approximately the same height as the left knee.

OBS

Speed skating term.

French

Domaine(s)
  • Patinage
CONT

Pour la position de départ, on se tient sur la carre intérieure des patins, avec le «centre exact de pression». Le buste est incliné dans la direction des patins, on arrondit le dos, on [lève] le bras droit et on le maintient à hauteur de l'épaule. Le bras gauche est un peu moins élevé; la main est à peu près à la hauteur du genou gauche.

OBS

Ce terme appartient au patinage de vitesse.

Spanish

Save record 34

Record 35 1987-02-02

English

Subject field(s)
  • Plywood
DEF

A plywood manufactured by hot-pressing layups of veneer.

OBS

A type of three-ply plywood is made with four layers of veneer. In this structure the two center veneers are laid parallel to each other so that they function as one ply that is twice as thick as the veneer.... the next stage in manufacture is hot-pressing, in which the layups are loaded into a multiopening hydraulic hot press.... The thicker layups are loaded one per opening, whereas thinner layups may be loaded two per opening. Heat and pressure are applied by the hydraulic press, and the glue lines are brought to a temperature at which the glue sets.

French

Domaine(s)
  • Contreplaqués
DEF

Contreplaqué réalisé en comprimant ses feuillets au moyen d'une presse chauffante.

OBS

On empile (...) les feuillets par nombre impair, 3, 5, 7, selon le type de contreplaqué que l'on veut obtenir, sur une table de composition (...) Les paquets de feuillets ainsi constitués sont ensuite dirigés vers les presses à contreplaqué où ils sont comprimés à chaud pour assurer la pénétration du mélange collant dans les couches du bois et la prise de la colle. Les presses utilisées sont à plateaux chauffants, multi-étages (10, 12, 15 ou plus), la pression appliquée varie de 10 à 12 kg/cm [carré] selon la nature de la colle.

OBS

Ne pas confondre la technique du contreplaqué pressé à chaud avec celle du panneau de particules pressé à chaud. Le terme "contreplaqué pressé à chaud" a été proposé conformément à l'usage de "panneau pressé à chaud", mentionné dans "Le collage du bois", cahier numéro 109, du Centre technique du bois.

Spanish

Save record 35

Record 36 1986-03-17

English

Subject field(s)
  • Climatology
DEF

A rapidly developing storm sometimes related to tropical weather systems which for dynamic and thermodynamic reasons have a sudden pressure drop within the center of the storm creating high winds and waves.

French

Domaine(s)
  • Climatologie
OBS

Terme proposé par le Centre météorologique canadien.

Spanish

Save record 36

Record 37 1982-08-30

English

Subject field(s)
  • Walls and Partitions
  • Foundation Engineering
OBS

the overturning moment of the inclined lateral pressure [value] around the center line 0 of the foundation(...) will also be smaller than the overturning moment of a horizontally directed pressure(...)(when [delta]=0) ;second, the actual magnitude of [the inclined lateral pressure] is decreased somewhat by the wall friction. This is expressed by smaller values of the coefficient of active earth pressure(...)

OBS

Earth-retaining structures.

French

Domaine(s)
  • Murs et cloisons
  • Technique des fondations
OBS

(...) la valeur réelle de [la poussée latérale] est légèrement diminuée par le frottement du mur; ce fait est mis en évidence par une diminution du coefficient de poussée des terres.

OBS

Ouvrages de soutènement.

Spanish

Save record 37

Record 38 1982-03-05

English

Subject field(s)
  • Railroad Maintenance
  • Rolling Stock (Railroads)
  • Steel
CONT

Center plate liners of hardened steel are now required in truck center plates of new and rebuilt cars of the heavier types; and a series of extreme pressure lubricants must be used in all center plates for the periodic lubrication.

French

Domaine(s)
  • Entretien (Équipement ferroviaire)
  • Matériel roulant (Chemins de fer)
  • Acier
OBS

grain : Pièce en acier dur trempé, servant d'appui à l'arbre de transmission dans une crapaudine.

Spanish

Save record 38

Record 39 1982-01-25

English

Subject field(s)
  • Servicing and Maintenance (Motor Vehicles and Bicycles)
OBS

The cylinder-leakage tester(...) applies air pressure to the cylinder with the piston at top dead center(...) In this position,(...) very little air should escape from the combustion chamber.

French

Domaine(s)
  • Entretien et réparation (Véhicules automobiles et bicyclettes)

Spanish

Save record 39

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