单项选择题
The data to be recorded on this sheet （） the performance of the engine.
A.makes the experts to judge
B.enables the experts to judge
C.make the experts judging
D.enable the experts to judge
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相关考题
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单项选择题
To assist separation of low viscosity oils steam coils or electric heaters are fitted （） of the oily water separator.
A.in entrance
B.in exit
C.in the upper part
D.on the outside -
单项选择题
The most suitable pump for oily water separator feed duties is （）.
A.a reciprocating pump
B.a vane pump
C.a centrifugal pump
D.a triple screw pump -
单项选择题
Placing a filter on the （） of an oily water separator will "polish" the discharge but overloading must be avoided.
A.suction side
B.discharge side
C.by-pass pipe
D.sampling pipe
