正确答案: A
control axial movement of the crankshaft
题目:A thrust bearing is used with a propulsion diesel engine to ____.
解析:A
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举一反三的答案和解析:
[单选题]活塞环的主要作用是______。
密封
[单选题]救生圈的投水试验高度为:
30米
[单选题]The Ship Security Plan should be submitted to____ for approval.
the Administration
[单选题]救生筏应能在多少米高度抛掷下水而不受影响使用?
18米