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CENTER LINE LIGHT [5 records]

Record 1 2011-01-12

English

Subject field(s)
  • Biological Sciences
CONT

The disk-type centrifuge consists of a stack of thin disks in the shape of cones. The sedimentation takes place in the radial direction in the space between adjacent cones.... Feed enters at the center line of the rotating bowl and is accelerated by fins or channels at the bottom of the disk stack assembly before it is introduced into the bowl proper.... The heavy liquid separates quickly and settles to the bowl wall. Light liquid with some of the heavy liquid entrained as small drops enters the outside of the disk stack and flows up the sloped surfaces to the central portion of the disks. The entrained drops of heavy liquor are separated in the shallow layers between the disks and settle back to the bowl wall. Any solids contained in the feed are also settled to the bowl wall.... The bowl used with these machines contains a central stack of coned discs which ensure an almost constant length of flowpath, and the deposition of solids at the bowl wall produces only a minor reduction in the flowpath.

French

Domaine(s)
  • Sciences biologiques
CONT

Parmi les centrifugeuses de décantation, on trouve les centrifugeuses à basse vitesse et celles à haute vitesse. Dans tous les cas, la partie essentielle de l'appareil est le bol, c'est-à-dire le rotor à paroi pleine. Les centrifugeuses à haute vitesse développent des champs centrifuges supérieurs à 5 000 g. Les appareils les plus courants sont les centrifugeuses à disques. L'intérieur du bol comporte un empilage d'une centaine de disques qui divisent le bol en fines couches entre lesquelles circule la suspension. Ces appareils ont souvent un bol percé d'orifices calibrés qui permettent une sortie en continu des solides décantés et d'une partie de la phase liquide lourde. Les centrifugeuses à disques constituent le matériel de séparation le plus compact que l'on puisse trouver : une machine qui débite 200 m³/h occupe un espace au sol inférieur à 4 m².

Spanish

Save record 1

Record 2 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 2

Record 3 1994-07-15

English

Subject field(s)
  • Artificial Intelligence
DEF

Angle between a line from a light source to the center of a detector and a line from the same source to the edge of the same detector.

French

Domaine(s)
  • Intelligence artificielle
OBS

Projet de norme ISO sur la visionique.

Spanish

Save record 3

Record 4 1985-10-23

English

Subject field(s)
  • Air Transport
OBS

The weighing point in weighing the aircraft is the point on the scale [a set of platform scales] at which the weight is concentrated, in weighing landplanes of light to medium weights it is usually the wheels that are placed on the scales, this means that the weighing point is in effect the same location that would be obtained if the center line of the wheel axle was projected on the scale.

French

Domaine(s)
  • Transport aérien
CONT

Lorsque l'on pèse un avion, le point, sur la balance, où est concentré le poids, s'appelle point de pesée. Lors de la pesée d'avions de poids léger à moyen, les roues sont généralement placées sur les balances. Ce qui signifie que le point de pesée s'obtient en traçant une ligne verticale par l'axe de l'essieu, jusqu'à son point de rencontre avec la balance.

Spanish

Save record 4

Record 5 1980-12-18

English

Subject field(s)
  • Execution of Work (Construction)
  • Earthmoving
  • Construction Site Equipment
CONT

In Vee ditching, the fist step is to assure a true ditch line. Set the wheels just inside the survey stakes; place the blade at 45 degrees into the travel direction; sideshift it to set the toe of the blade along the wheel line; tilt the blade to allow the material to spill along the center line of the grader; make a first light cut.

Key term(s)
  • blade forward end

French

Domaine(s)
  • Exécution des travaux de construction
  • Terrassement
  • Matériel de chantier
CONT

Au retour, [la niveleuse doit] reprendre le cordon laissé par la première passe et le refouler vers le talon de la lame. Le matériau transporté de la pointe vers le talon ne doit pas déborder de la pointe de la lame.

Spanish

Save record 5

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