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CENTER HOLE [32 records]

Record 1 2025-06-25

English

Subject field(s)
  • Visual Disorders
CONT

A macular hole(MH) is a round full-or partial-thickness defect in the macular region, specifically in the foveal center.

French

Domaine(s)
  • Troubles de la vision
CONT

On parle de trou maculaire (TM) lorsqu'une perte de substance se produit au centre de la macula, au niveau de la fovéa. Normalement, il existe une continuité parfaite des tissus rétiniens, avec une répartition sans interruption des cellules photoréceptrices. Cette continuité est rompue en cas de trou maculaire.

Spanish

Save record 1

Record 2 2023-09-05

English

Subject field(s)
  • Joining Elements (Mechanical Components)
  • Springs (Mechanical Components)
CONT

In a leaf spring assembly, one of the most important pieces is the center bolt. At the center of each leaf is a hole. The bolt gets slotted through this hole in each of the four, five or more leaves that comprise a spring. Effectively, the center bolt holds the leaves together and puts them in contact with the axle.

French

Domaine(s)
  • Éléments d'assemblage (Composants mécaniques)
  • Ressorts (Composants mécaniques)
DEF

Boulon d'assemblage placé au centre des lames de ressort de suspension pour les réunir les unes aux autres.

CONT

[Un boulon en U élimine] la courbure du ressort à lames, ce qui réduit également la concentration de contraintes près du trou du boulon de centrage de chaque lame.

Spanish

Campo(s) temático(s)
  • Elementos de empalme (Componentes mecánicos)
  • Resortes (Componentes mecánicos)
Save record 2

Record 3 2023-08-03

English

Subject field(s)
  • Optical Instruments
  • Medical and Surgical Equipment
CONT

Aperture diaphragm : is the simplest type of beam restricting device. It consists of a sheet of lead with a hole in the center that determines the size and shape of the beam and attaches directly to the x-ray tube.

French

Domaine(s)
  • Instruments d'optique
  • Équipement médico-chirurgical

Spanish

Campo(s) temático(s)
  • Instrumentos ópticos
  • Equipo médico y quirúrgico
Save record 3

Record 4 2022-06-17

English

Subject field(s)
  • Locks and Locksmithing
DEF

A door lock part with a square hole in the center [that accepts] the spindle and [that usually has] two projections [that move the bolt] when turned by the [handle].

French

Domaine(s)
  • Serrurerie
DEF

Pièce d'une serrure percée d'un trou destiné à recevoir la tige carrée [de la poignée], et portant [au moins] un bras destiné à transmettre son mouvement.

Spanish

Campo(s) temático(s)
  • Cerrajería
Save record 4

Record 5 2017-05-04

English

Subject field(s)
  • Hand Tools
CONT

The hammer handle should always be tight in the head... The eye or hole in the hammer head is made with a slight taper in both directions from the center. After the handle, which is tapered to fit the eye, is inserted, in the head, a steel or wooden wedge is driven into the end of the handle that is inserted into the head. This wedge expands the handle and causes it to fill the opposite taper in the eye. Thus the handle is wedged in both directions...

Key term(s)
  • hammer wedge
  • hammer handle wedge
  • hammer eye wedge
  • hammer head wedge

French

Domaine(s)
  • Outillage à main
DEF

Coin en bois dur ou en métal que l'on enfonce dans l'œil des pannes des marteaux et des maillets pour les solidariser avec leur manche.

Spanish

Save record 5

Record 6 2010-04-19

English

Subject field(s)
  • Viticulture
CONT

Many methods have been used in setting and supporting end posts... A satisfactory method is to set the anchor post at a slight angle. The post is then guyed with a strong galvanized wire, one end of which is fastened to the post 0, 3 m(1 ft) from the top and the other to an anchor 1 m(3 ft) from the post. A very satisfactory anchor is made by placing a 1 m(3 ft) iron bar... in a post hole... Approximately 15 L(3 gal) of concrete are poured around the bar as it is held in the center of the hole.

OBS

A device secured to the ground and used to brace the end post of a trellis.

OBS

The anchor may be a concrete deadman, a buried steel plate or steel pipe, or a short post protruding 12-18 in ... above the soil ...

French

Domaine(s)
  • Viticulture
CONT

Les fils sont tendus par les piquets de bouts de rang qui sont stabilisés par divers procédés d'ancrage : - ancrage avec inclinaison du piquet de tête : pieu en bois traité de 70 cm dépassant de 10 à 15 cm du sol, tige cylindrique de 10 mm de diamètre et de 1,10 m de long, dont la base est coulée dans du béton, hélice galvanisée de 100 ou 150 mm [...], borne (20 kg) ou pieu (9,5 kg) en béton [...]

OBS

Dispositif qui permet de soulager la tension sur les poteaux de bout et empêcher qu'ils ne s'inclinent vers l'intérieur.

Spanish

Campo(s) temático(s)
  • Viticultura
Save record 6

Record 7 2007-07-27

English

Subject field(s)
  • Special Packaging
  • Audiovisual Techniques and Equipment
CONT

Inside, the DVD case can hold a disc and a printed insert. A locking hub holds the disc by its center hole.

French

Domaine(s)
  • Emballages spéciaux
  • Audiovisuel (techniques et équipement)
CONT

Dans le domaine du film, l'emballage par excellence est le boîtier DVD simple [...] en polypropylène, en [deux] parties reliées entre elles par une charnière fine. La rosace de fixation du disque est à droite du boîtier ouvert [...]

Spanish

Save record 7

Record 8 2005-10-04

English

Subject field(s)
  • Grinding (Machine-Tooling)
DEF

recesses wheels: Grinding wheels made with a depression in one side or both sides to fit special types of flanges or sleeves provided with certain grinding machines.

CONT

Recessed wheels [are] grinding wheels that have a smaller thickness near the center arbor hole.

CONT

Recessed / Relieved. Recessed wheels having an ANSI type 6, 5 or 11 shape fall under this category. Type 5 wheels are only recessed on one side. Type 7 wheels are recessed on both sides.

French

Domaine(s)
  • Meulage (Usinage)
CONT

La présente partie de l'ISO 603 spécifie les dimensions nominales, en millimètres, des meules de [...] Type 5: Meule à un embrèvement. Type 7: Meule à deux embrèvements. [...] Ces produits abrasifs agglomérés sont utilisés pour la rectification cylindrique extérieure entre centres. La pièce travaillée et la meule sont guidées mécaniquement.

Spanish

Save record 8

Record 9 2005-01-10

English

Subject field(s)
  • Equipment (Oil and Natural Gas Extraction)
  • Oil Drilling
DEF

The principal component of a rotary, or rotary machine: used to turn the drill stem and support the drilling assembly.

CONT

The rotary table is situated in the center of the derrick floor immediately over the well bore and directly under the center of the derrick or mast. Its function is to support the weight of any pipe or casing run into the hole and to provide rotary motion to the drillpipe string via the kelly...

OBS

RT: ... abbreviation ... used in drilling reports.

French

Domaine(s)
  • Outillage (Extraction du pétrole et du gaz)
  • Forage des puits de pétrole
CONT

[...] cette tige carrée est engagée dans une table de rotation située au niveau du plancher de la tour de sondage.

OBS

Le niveau supérieur de la table est en principe le niveau de référence pour la mesure des profondeurs.

Spanish

Campo(s) temático(s)
  • Equipo para extracción de petróleo y gas natural
  • Perforación de pozos petrolíferos
DEF

Plataforma de las sondas petrolíferas que imprime movimiento giratorio a la barrena.

Save record 9

Record 10 2003-12-22

English

Subject field(s)
  • Photography
CONT

Dodgers are indispensable aids in print contrast control. Distinguish between two kinds : small pieces of cardboard(usually round or oval in different sizes) attached to a wire handle, for holding back negative areas that would otherwise appear too dark in the print; and pieces of cardboard with a hole in the center, for burning in negative areas that would otherwise appear too light in the print.

French

Domaine(s)
  • Photographie
CONT

Au moment de l'agrandissement, on peut procéder, lors de l'exposition, à un masquage partiel des parties trop claires d'un négatif en utilisant des caches mobiles. Il est possible de confectionner soi-même ces caches avec du fil et du fer et du carton noir. Lorsqu'on utilise un cache, il faut le faire bouger pour empêcher l'apparition de contours et de taches trop claires.

Spanish

Save record 10

Record 11 2003-09-11

English

Subject field(s)
  • Oil Drilling
  • Equipment (Oil and Natural Gas Extraction)
DEF

A walled, round hole or well in the hull of a drill ship(usually in the center) through which the drilling and other assemblies pass while a well is being drilled, completed, or abandoned from the drill ship.

CONT

Unlike traditional vessels, [drill vessels] are modified by a center opening through the vessel for conducting drilling operations. This center opening is commonly called a "moonpool."

CONT

Most of the development of equipment and technology for rotary drilling from floating vessels started with an extensive shallow-hole coring operation off the coast of California in the Santa Barbara Channel. The very first operations were conducted "over the side" of the drill vessel, but these were quickly supplanted by vessels designed with a center drill well or "moonpool. "

CONT

The center drill well is located with the center of gravity of the vessel to minimize the effect of rotational motion. The derrick or mast is located over the drill well with the pipe racks adjacent either fore or aft.

Key term(s)
  • moon-pool

French

Domaine(s)
  • Forage des puits de pétrole
  • Outillage (Extraction du pétrole et du gaz)
DEF

Ouverture pratiquée dans la coque d'un navire de forage ou dans le plancher d'une plate-forme pour donner passage aux équipements de forage.

CONT

Une ouverture de 5 m de diamètre, ou plus, au centre de la plate-forme ou de la coque du bateau permet l'immersion des équipements sous-marins, assemblés, essayés sur un pont particulier [...]. Cette ouverture appelée «slot» ou «moonpool» est traversée par deux poutres horizontales rétractables servant de support des ensembles avant immersion. (Forages, no54, janvier - mars 1972, p. 40).

OBS

Moonpool est réservé à une ouverture centrale. Slot s'emploie quand cet espace est aménagé dans l'un des côtés de la plate-forme (notamment sur les plates-formes triangulaires). Cet orifice est généralement rectangulaire, mais sur les premières unités de forage (navires, barges), il était circulaire, d'où, probablement, son appellation.

OBS

Il n'y a pas d'équivalent français attesté. Nous proposerions : la porte, si ce mot ne désignait pas déjà une autre réalité (ouverture aménagée dans un côté du derrick). On pourrait dire : la trappe, la piscine, la lucarne ...

Spanish

Campo(s) temático(s)
  • Perforación de pozos petrolíferos
  • Equipo para extracción de petróleo y gas natural
Save record 11

Record 12 2002-09-26

English

Subject field(s)
  • Mountain Sports
DEF

A device that climbers anchor in a crack and connect to their ropes ... designed to stop a falling climber.

CONT

In the early days... leaders used natural chockstones... Soon it became apparent that an artificial chockstone [was] superior to improvised "stones"... their shape and variety of sizes allowed them to be placed and removed quickly and easily in all sizes of cracks, and the hole in the center seemed just made for inserting runners... they do not chip or scar the rock...

CONT

[A chock is] often called a nut, because the original type of chock was a machine nut picked-up along the railroad tracks on the way to British cliff climbs. Chocks are normally threaded with a steel cable, or with nylon rope or webbing to allow carabiners to be clipped to them.

French

Domaine(s)
  • Sports de montagne
DEF

Objet métallique de forme asymétrique monté sur câble ou parfois sur cordelette, que l'on peut coincer dans les fissures du rocher.

CONT

[... ] les nuts ou coinceurs dérivent d'une curieuse technique adoptée [...] par les rochassiers anglais [...] [qui] emportaient avec eux quelques pierres polies [...] de différentes grandeurs pour les encastrer dans les fissures, entourées d'une cordelette.

CONT

[...] l'escalade libre permet la mise en place des coinceurs, particulièrement utiles en granit. [...] Il en existe beaucoup de sortes dont les deux principales sont les pyramidaux et les excentriques.

Spanish

Save record 12

Record 13 2002-03-08

English

Subject field(s)
  • Drilling (Machine-Tooling)
DEF

A drilling machine in which a vertical drill moves into the work, which is stationary.

CONT

A drill press is preferable to a hand drill when the location and orientation of the hole must be controlled accurately. A drill press is composed of a base that supports a column, the column in turn supports a table. Work can be supported on the table with a vise or hold down clamps, or the table can be swiveled out of the way to allow tall work to be supported directly on the base. Height of the table can be adjusted with a table lift crank than locked in place with a table lock. The column also supports a head containing a motro. The motor turns the spindle at a speed controlled by a variable speed control dial. The spindle holds a drill chuck to hold the cutting tools(drill bits, center drills, deburring tools, etc.). [An illustration follows. ]

French

Domaine(s)
  • Perçage (Usinage)
CONT

perceuse à colonne : [...] Elles ont la possibilité d'effectuer le perçage d'éléments les plus variés, unitairement ou en série, avec des outillages appropriés. [...] Une table porte-pièce peut coulisser, s'orienter et se bloquer sur cette colonne.

Spanish

Save record 13

Record 14 2000-12-21

English

Subject field(s)
  • Tunnels, Overpasses and Bridges
CONT

When the two half arches were complete there remained a gap of a few centimeters to be closed... by letting the retaining cables out gradually until the two halves met, a 20-cm.-diameter pointed steel peg or spigot fitting in a hole to center the girders accurately for bolting together. The method of letting down the immensely heavy bridge halves gradually is a simple process known as fleeting.

French

Domaine(s)
  • Tunnels, viaducs et ponts

Spanish

Save record 14

Record 15 2000-08-31

English

Subject field(s)
  • Types of Wood
DEF

Studs of wood with a hole drilled in the center of each board about 16 inches from the end. The holes usually serve the purpose of allowing electrical wiring, cables or pipes to be run through the studs during wall construction.

French

Domaine(s)
  • Sortes de bois
Key term(s)
  • bois prépercé
  • colombage pré-percé
  • colombage prépercé

Spanish

Save record 15

Record 16 2000-06-27

English

Subject field(s)
  • Equipment (Oil and Natural Gas Extraction)
DEF

A device built similar to a rod wiper but designed to be used on a drill pipe.

DEF

A disk-shaped device, with a hole in the center through which drill pipe or tubing passes, that is used to wipe off mud, oil, or other liquid from the pipe as the pipe is pulled from the hole.

DEF

A device with half-round rubber blades held in place by hydraulic rams that is bolted to the floor of a rig and cleans drilling mud from drill pipes as they emerge from the hole.

French

Domaine(s)
  • Outillage (Extraction du pétrole et du gaz)
DEF

Disque en caoutchouc qui obture l'espace annulaire lors de la remontée du train de tiges, pour éviter la chute d'objets métalliques dans le trou.

Spanish

Save record 16

Record 17 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 17

Record 18 1999-10-13

English

Subject field(s)
  • Drilling (Machine-Tooling)
DEF

A small drill to start a hole to ensure that a larger drill will run true to center.

French

Domaine(s)
  • Perçage (Usinage)

Spanish

Save record 18

Record 19 1999-06-07

English

Subject field(s)
  • Riveting (Metals)
  • Aeronautical Engineering and Maintenance
DEF

The distance between the center of the rivet hole and the edge of the material.

OBS

edge distance: term standardized by ISO.

French

Domaine(s)
  • Rivetage (Métallurgie)
  • Aérotechnique et maintenance
OBS

distance à partir de l'arête : terme normalisé par l'ISO.

Spanish

Save record 19

Record 20 1998-10-14

English

Subject field(s)
  • Orthoses
  • The Eye
CONT

One type of hard lens(fenestrated) had a 0. 016 inch(0. 4 millimeter) hole in the center, while the other type(non-fenestrated) was solid throughout.

French

Domaine(s)
  • Orthèses
  • Oeil
DEF

Lentille de contact rigide dans laquelle ont été pratiquées une ou plusieurs petites perforations favorisant l'échange de larmes.

OBS

Source MVISI-F : Le nouveau dictionnaire de la vision par Michel Millodot, Médiacom Vision Éditeur, 1997.

Spanish

Save record 20

Record 21 1996-02-05

English

Subject field(s)
  • Joining Elements (Mechanical Components)
  • Aeronautical Engineering and Maintenance
CONT

Removing solid rivets. When rivet must be removed from a piece of aircraft structure, make a small center punch mark in the very center of the manufactured head.... Using a drill one size smaller than the rivet, drill almost through the head of the rivet. Pop the rivet head off with a small chisel.... Support the skin next to the rivet being removed with a bucking bar, and using a pin punch slightly smaller than the rivet, punch the shank out of the hole.

OBS

solid rivet: term standardized by ISO.

French

Domaine(s)
  • Éléments d'assemblage (Composants mécaniques)
  • Aérotechnique et maintenance
OBS

rivet plein : terme normalisé par l'ISO.

Spanish

Save record 21

Record 22 1991-03-26

English

Subject field(s)
  • Machine-Tooling (Metallurgy)
DEF

A brush in the shape of a cup, having an arbor hole at its center for securing to a shaft or mandrel.... It is used in a rotary, power-operated device for polishing, cleaning and the like.(USSU 6-72, 68).

French

Domaine(s)
  • Usinage (Métallurgie)
OBS

brosse coupe : Terme uniformisé par CN-Air Canada.

Spanish

Save record 22

Record 23 1991-03-22

English

Subject field(s)
  • Facilities and Instruments (Astronomy)
DEF

A reflecting telescope in which the light is reflected from the(parabolic) main mirror onto a convex(hyperbolic) secondary mirror and back through a hole in the center of the main mirror, thence into the eyepiece.

Key term(s)
  • cassegrainian

French

Domaine(s)
  • Installations et instruments (Astronomie)
DEF

Combinaison optique dans laquelle la lumière se réfléchit sur un miroir principal parabolique concave, puis sur un petit miroir hyperbolique convexe, pour donner une image finale agrandie, à travers un trou percé au centre du miroir principal.

Spanish

Save record 23

Record 24 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 24

Record 25 1988-09-15

English

Subject field(s)
  • Blasting Work (Mining)
DEF

A new drill hole pattern in which two overlapping holes of about 2 1/4 inches in diameter are drilled in the tunnel center and left uncharged. These holes form a slot roughly 4 by 2 inches to which the easers can break. All the holes in the round are parallel and in-line with the tunnel. Short-delay detonators are used for the easer holes and 1/2-second delays for the rest of the round. A pull of 10 feet per round has been obtained in strong rock with 10-foot 6-inch holes. Explosive consumption for the easer holes is about 0. 2 pounds per foot of hole.

French

Domaine(s)
  • Travail aux explosifs (Exploitation minière)
DEF

Le bouchon coromant (...) comporte deux "gros" trous sécants vides et des trous chargés parallèles, mais la disposition des trous chargés et la faible section du double gros trou (équivalent à un seul trou d'environ 100 mm de diamètre) en font un bouchon de type canadien qui travaille surtout par arrachement perpendiculaire au front. La nécessité d'un gabarit spécial pour la foration et les progrès dans la foration de trous de gros diamètre même en roche dure font abandonner ce schéma pour le véritable bouchon cylindrique.

Spanish

Save record 25

Record 26 1987-04-08

English

Subject field(s)
  • Drilling (Machine-Tooling)
DEF

A stubby two-fluted twist drill with a 60 ° countersink used to drill a countersunk center hole in a workpiece.

OBS

Definition adaptée par le Comité interentreprises de la terminologie de l’usinage et des machines-outils.

Key term(s)
  • centre drill

French

Domaine(s)
  • Perçage (Usinage)
DEF

Outil de forme servant à percer un avant-trou ou à façonner un centre ou logement conique à 60 ° épousant les pointes des poupées du tour.

Spanish

Save record 26

Record 27 1987-04-08

English

Subject field(s)
  • Lathe Work (Machine-Tooling)
  • Drilling (Machine-Tooling)
DEF

Process of drilling and countersinking a center hole in a workpiece with a center drill.

OBS

Definition written by Comité interentreprises de la terminologie de l’usinage et des machines-outils.

Key term(s)
  • centre drilling

French

Domaine(s)
  • Tournage sur métaux
  • Perçage (Usinage)
DEF

Opération qui consiste à matérialiser sur la pièce l'emplacement des pointes ou du trou à percer, à l'aide d'un foret à centrer.

Spanish

Save record 27

Record 28 1986-06-03

English

Subject field(s)
  • Lathe Work (Machine-Tooling)
DEF

Part that moves in and out of the upper casting when the tailstock handwheel is turned. This spindle has a taper hole into which the dead center or other tools such as drills and reamers fit.

French

Domaine(s)
  • Tournage sur métaux
DEF

Organe coulissant logé dans la partie supérieure de la contrepointe. Il reçoit la pointe fixe, la pointe tournante ou les forets.

Spanish

Save record 28

Record 29 1986-03-18

English

Subject field(s)
  • Garden and Outdoor Furniture
DEF

Table, round, square or rectangular, with a hole, usually in the center, for an umbrella; used on the patio or in the garden.

French

Domaine(s)
  • Mobilier de jardin
DEF

Table avec trou pour mât de parasol; pieds d'acier.

OBS

Table ronde : perforation centrale pour le parasol.

Spanish

Save record 29

Record 30 1986-02-13

English

Subject field(s)
  • Micrographics
DEF

processed microfilms are right reading when the direction of the light passing through the film is from the outside toward the center of the reel. If the supply reel of processed microfilm has a round spindle hole, the film should unwind downward from the right-hand side when the round hole is toward the observer.

French

Domaine(s)
  • Micrographie
DEF

les microfilms traités se lisent à l'endroit lorsque la direction de la lumière qui traverse le film est de l'extérieur du film vers le centre de la bobine. Si la bobine débitrice du microfilm traité a un trou rond, le film devrait se dérouler vers le bas, du côté droit, lorsque le trou rond est vis-à-vis l'observateur.

Spanish

Save record 30

Record 31 1975-03-11

English

Subject field(s)
  • Audio Technology
  • Audiovisual Techniques and Equipment
OBS

--a 7-inch-diameter disk recorded and reproduced at a speed of 45 rpm, having a center hole of 1. 5 inches in diameter and grooves designed for a stylus having a point radius of 1 mil.

French

Domaine(s)
  • Électroacoustique
  • Audiovisuel (techniques et équipement)
OBS

les puristes n'apprécient guère cet automatisme, mais il y a maintenant d'excellents "changeurs". Ils se justifient surtout pour les disques 45 tr-mn.

Spanish

Save record 31

Record 32 1975-03-11

English

Subject field(s)
  • Audio Technology
OBS

forty-five rpm record : a 7-inch-diameter disk recorded and reproduced at a speed of 45 rpm, having a center hole of 1. 5 inches in diameter and grooves designed for a stylus having a point radius of 1 mil.

French

Domaine(s)
  • Électroacoustique
OBS

deux causes de pleurage sont plus probables: le mauvais centrage du disque phonographique dont le trou central est légèrement trop grand pour s'adapter sans jeu à la broche de centrage qui émerge du plateau.

Spanish

Save record 32

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