A.windlasses
B.drums
C.capstans
D.warp ends
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A.horse power
B.high pressure compressor
C.hand pump
D.high pressure
A.catch plates
B.swash plates
C.cover plates
D.bedplates
A.filter
B.hole
C.pollution
D.content
A.scaled
B.worn
C.deformed
D.rested
A.a heater
B.a pre-heater
C.an exhaust gas boiler
D.the coal burning boiler
最新試題
The output volume of a positive fixed displacement pump can be changed only by ().
The rate of heat transfer from a hot region to a cold region is affected most by the ().
An increasing head pressure in a refrigeration system, without any corresponding change in the cooling water inlet temperature, would probably be caused by ().
Which of the problems listed would came the discharge temperature of an R-12 refrigeration compressor to increase?()
When the steering gear is in operation, you should ().
Low compressor head pressure in a refrigeration system can be caused by().
A pressure drop through the refrigerant liquid line may cause ().
The usual symptoms of cavitation in a centrifugal pump is ().
One cause of high head pressure occurring in a refrigeration system can be ().
The control mode in which the final control element is moved from one of two flexed positions to the other is known as ().