单项选择题
A.engine cylinder B.air bottle C.evaporator D.condenser
The air compressor pumps air to the （）.A.expansion tank...
单项选择题The air compressor pumps air to the （）.
A.expansion tank B.combustion chamber C.air receiver D.evaporator
The air compressor pumps air to the （）.A.air cylinderB....
A.air cylinder B.combustion chamber C.steam drum D.expansion tank
The （） stage air compressors are widely used on board t...
单项选择题The （） stage air compressors are widely used on board the ship.
A.single B.Ⅱ C.Ⅲ D.multiple
