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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 > 船舶电气与船舶安全

单项选择题

The development goals for a large marine engine are many often interact and in some cases even with each other（）

A.conflict
B.accord
C.harmonize
D.struggle

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单项选择题

The key feature of the Sulzer RT-flex system is that it gives complete freedom in the and operation of fuel injection and exhaust valve actuation（）

A.metering
B.control
C.using
D.timing

单项选择题

A clearly visible beneath of RT-flex engines is their operation at all ship speedsThis is achieved by the superior combustion performance（）

A.shockless
B.smokeless
C.no vibration
D.noiseless

单项选择题

There is a support ring between the cylinder block and collar of the cylinder liner, thus carrying both the liner and the cylinder coverIt also passes to the cooling bores and to the cover（）

A.cooling water
B.cooling oil
C.refrigerant
D.lubricate oil

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