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單項(xiàng)選擇題

The auxiliary engine and a cgenerator can be connected with （）.

A.cam
B.crosshead
C.bulge
D.coupling

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單項(xiàng)選擇題

The amount of lubricating oil in the drain tank should be checked by （）.

A.measuring
B.sounding rod
C.metering
D.weighting

單項(xiàng)選擇題

The abbreviation TDC means （）.

A.top dead center
B.temperature difference center
C.time delay dock
D.top diesel company