正确答案: A

turning gear

题目：He said that he had turned the main engine one complete revolution with the （）.

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学习资料的答案和解析：

[单选题]（）包括舵机、锚机、绞缆机、起货机、尾门尾跳系统、吊艇及舷梯升降机等。

甲板机械

[单选题]可靠性着重研究的是（）。

一般故障

[单选题]The lubricating oil is pumped from the drain tank, very often with （） in the suction line.

a magnetic filter