A.The generator needs not excitation B.The winding on the rotor is for inputting excitation current C.There are three phase windings on the rotor D.The generator has brushes
A.central air condition system B.high velocity system C.low velocity system D.single duct system
A.under high pressure B.under low pressure C.heated to reduce viscosity D.cooled to increase viscosity
A.paint peeling off the uptake B.no operation procedures for the oil separators C.one of ship’s certificates required is invalid D.damaged sanitary pump
A.should bring B.should be brought C.should take D.should be taken
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