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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 viscosity regulator controls （） in order to provide oil at the correct viscosity for combustion.

A.the engines speed
B.the engines load
C.the fuel oil temperature
D.the fuel oil flow

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