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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 complete assembly of bedplate, A-frames and cylinder block is held together by （） to form a rigid structure.

A.tap-bolts
B.jack-bolts
C.tie rods
D.fitted rods

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