A.opposing operational drag
B.pressure distribution
C.differential
D.system purge
您可能感興趣的試卷
你可能感興趣的試題
A.release
B.absorb
C.develop
D.regenerate
A.Sub-cooled liquid
B.Sub-cooled vapor
C.Superheated vapor
D.Liquid
A.latent heat of expansion
B.sensible heat of condensation
C.heat of compression
D.all of the above
A.have a high viscosity index
B.mix readily with refrigerant
C.have a high freezing point
D.have a low pour point
A.low wax content
B.high pour point
C.high viscosity
D.all of the above
最新試題
If separating effect is not good, which measure should be taken （）
One of the reasons that cause oil flowed from sludge outlet of a self-cleaning separator is（）
The main purpose of port State control is not to（）
Cold weather starting of a diesel engine may be made easier by（）
A purge recovery system is used in a centrifugal air conditioning or refrigeration system to （）
Which of the following items don’t belong to dock repair works?（）
The additional mark （）in the Classification Certificate for Machinery means propulsion apparatus is remotely controlled on the navigating bridge control station, and engine assembly control station is unmanned periodically.
The condensers located in various stages of a flash evaporator are cooled by（）
（） is not installed on the main switchboar.
During the diesel engine running, the water level of F.W expansion tank should normally kept in the （） level of glass tube.