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單項(xiàng)選擇題

The starting of a marine diesel engine is generally carried out with the assistance of （）.

A.compressed air
B.electricity
C.hydraulic oil
D.compressing air

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單項(xiàng)選擇題

The starting air system usually has （） to prevent starting if anything is not in order.

A.stop valves
B.interlocks
C.non-return valves
D.air vents

單項(xiàng)選擇題

The starting air system usually has （） to prevent starting if anything is not in order.

A.drain cocks
B.vent valves
C.counteracts
D.interlocks

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