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單項(xiàng)選擇題

The function of （） in a refrigeration plant using Freon is to move moisture from all refrigeration system.

A.filter
B.filter drier
C.heat exchanger
D.air cooler

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單項(xiàng)選擇題

The boiling and condensation points of refrigerant mainly depend on the （） exerted upon it.

A.temperature
B.density
C.volume
D.pressure

單項(xiàng)選擇題

In a compression refrigeration plant the refrigerant is under low pressure in the （） and under high pressure in the （）.

A.compressor；condenser
B.condenser；evaporator
C.throttle valve；evaporator
D.evaporator；condenser

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