单项选择题
The fresh water generator produces fresh water （）.
A.by cooling sea water
B.by heating sea water
C.by evaporation of sea water
D.by purifying sea water
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相关考题
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单项选择题
Because of the reduced （） in the vacuum boiling evaporator, some of the sea water boils as it flows through the tubes.
A.temperature
B.water level
C.pressure
D.rate of flow -
单项选择题
We use （） to distill fresh water from sea water.
A.engine
B.sea water pump
C.cylinder cooler
D.fresh water generator -
单项选择题
In the condenser, the hot, high pressure refrigerant gas is cooled by the sea water and becomes（）.
A.fresh water
B.vapor
C.mixture
D.liquid
