The band of the sky extending 9° either side of the ecliptic. The sun, moon, and navigational planets are always within this band, with the occasional exception of Venus. The zodiac is divided into 12 equal parts, called signs, each part being named for the principal constellation originally within it.
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ABSORBER
That part of the low side of an absorption system, used for absorbing vapor refrigerant.
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WEATHER SIDE
The side of a ship exposed to the wind.
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SHELL PLATING
The plates forming the outer side and bottom skin of the hull
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PRESSURE DROP
Resistance to flow created by the element (media) in a filter or other equipment. Defined as the difference in pressure upstream (inlet side of the unit) and downstream (outlet side of the unit).
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BACK PRESSURE
The pressure encountered on the return side of a system.
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HYPOTENUSE
The side of a plane right triangle opposite the right angle; the longest side of a plane right triangle
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DOWNSTREAM
The outlet side of an instrument, a pump, valve, etc..
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IN-BAND RACON
A racon which transmits in the marine radar frequency band. There are two types of in-band racons, swept-frequency racons and experimental fixed-frequency racons. The transmitter of the sweptfrequency racon sweeps through a range of frequencies within the band to insure that a radar receiver tuned to a particular frequency within the band will be able to detect the signal. The fixed-frequency racon transmits on
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SUCTION SIDE
Low-pressure side of the system extending from the refrigerant control through the evaporator to the inlet valve of the compressor.
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SUCTION PRESSURE
Pressure in low-pressure side of a refrigerating system, pump or compressor.
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