A.makes the experts to judge
B.enables the experts to judge
C.make the experts judging
D.enable the experts to judge
您可能感興趣的試卷
你可能感興趣的試題
A.in entrance
B.in exit
C.in the upper part
D.on the outside
A.a reciprocating pump
B.a vane pump
C.a centrifugal pump
D.a triple screw pump
A.suction side
B.discharge side
C.by-pass pipe
D.sampling pipe
A.pressure
B.velocity
C.gravity
D.viscosity
A.the temperature
B.the viscosity
C.the gravity
D.the size
最新試題
Using a file without a handle may result in （）
Which of the listed governor characteristics will greatly affect the load sharing relationship between paralleled diesel generators?（）
If two A.C.generators are to be operated in parallel, the load is distributed evenly by（）
（） is not installed on the main switchboar.
The main purpose of port State control is not to（）
The condensers located in various stages of a flash evaporator are cooled by（）
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.
If separating effect is not good, which measure should be taken （）
A purge recovery system is used in a centrifugal air conditioning or refrigeration system to （）
Refrigerant entering the compressor of a refrigeration system should be in which of the following conditions?（）