你可能感興趣的試題

Excessively warm water leaving condenser may be caused by（）

A.fouled tubes in shell and tube condenser
B.too little or too warm condenser water
C.air or non-condensable gas in system
D.overcharge of refrigerant

單項(xiàng)選擇題

（）, or drum is used for hauling in or letting out the wires or ropes which will fasten the ship to the shore.

A.The winch motor
B.The band brake
C.The winch barrel
D.The anchor capstan

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Two rams of the hydraulic gear are linked at their outer ends to （） by a crosshead and swivel block.

你可能感興趣的試題

Excessively warm water leaving condenser may be caused by（）

（）, or drum is used for hauling in or letting out the wires or ropes which will fasten the ship to the shore.

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