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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

The correct tightening is obtained by use of （） to measure the extension given to the bolts.

A.pressure gauges
B.stretch gauges
C.thermometers
D.bridge gauges

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The cooling water temperature （） over a period of 8 hours, and then shut down.

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The cooling water jacket is common to all the cylinders but there are often （） to ensure that each cylinder receives the right amount and flow of water.

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