A.on top cover
B.on sides of bowl
C.in drain line on the discs
D.on the discs
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A.oil
B.sea water
C.refrigerant
D.fresh water
A.a flash generator
B.a flash evaporator
C.a vacuum boiling evaporator
D.a boiler
A.lower than
B.higher than
C.as much as
D.the same as
A.overboard
B.a bilge well
C.a slop tank
D.a hot well
A.by trial and error
B.by and large
C.automatically
D.very easily
最新試題
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Low compressor head pressure in a refrigeration system can be caused by（）.
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