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The housing of the main operating unit of electronic equip- ment, in which indicators and general controls are located. The term is popularly limited to large housings resting directly on the deck, as contrasted with smaller cabinets such as rack or bracket- mounted units.



Related Terms

BLOCKHOUSE

  1. A reinforced concrete structure, often built underground or half-underground, and sometimes dome-shaped, to provide protection against blast, heat, or explosion during rocket launchings or related activities, and usually housing electronic equipment used in launching the rocket. 2. The activity that goes on in such a structure.

SCANNER

  1. A unit of a radar set consisting of the antenna and drive assembly for rotating the antenna. 2. A computerized electronic device which digitizes printed images.

BARRELS PER STREAM DAY

A measurement used to denote rate of oil or oil-product flow while a fluid-processing unit is in continuous operation. Abbreviated BSD.

SEARCH AND RESCUE RADAR TRANSPONDER

An electronic device which transmits a homing signal on the radar frequency used by rescue ships and aircraft.

MOHM

A unit of mechanical mobility, equal to the reciprocal of 1 mechanical ohm.

MODULUS OF RESILIENCE

The maximummechanical energy stored per unit volume of ma-terial when it is stressed to its elastic limit.

GRAIN

A unit of measure commonly used in water analysis for the measurement of impurities in water. (17.1 grains = 1 part per million

FLUID TON

A unit of volume equal to 32 cubic feet or approximately 0.90614 cubic meter; used for many hydrometallurgical, hydraulic, and other industrial purposes.

COMPRESSIBILITY

Measure of ability of being compressed. The change in volume of a unit volume of a fluid when subjected to a unit change of pressure.

UNIT

A value, quantity, or magnitude in terms of which other values, quantities, or magnitudes are expressed. In general, a unit is fixed by definition and is independent of such physical conditions as temperature.

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