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全部科目 > 水路交通运输技能考试 > 海船船员考试 > 船舶管理(轮机专业) > 轮机英语 > 船舶动力装置

单项选择题

（） fuel oils （） lubricating oils require treatment before passing to the engine.

A.Both；and
B.Neither；nor
C.Either；or
D.Both；or

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单项选择题

（） device is provided to prevent starting air from being admitted to the cylinder before the reversing is completed.

A.An automatic
B.A transmission
C.A self-regulating
D.An interlocking

单项选择题

（） are generally formed in the frame of the both in-line and Vee engines to give maintenance access to the crankshaft main and connecting rod large end bearing.

A.Doors
B.Aspirate gauzer
C.Coupling
D.Blind

单项选择题

（） are commonly used in mechanical-hydraulic governor（调速器） to sense engine speeds.

A.Bulbs
B.Bulks
C.Flyweights
D.Flywheels

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