正确答案: C

C．1/3

题目：柱塞套筒进行滑动试验时，一般将柱塞抽出（）配合面长度。

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学习资料的答案和解析：

[单选题]大型海船艉轴工作轴颈较长，所包覆的铜套过长，加工和安装均不便，故将铜套分段加工、套合，但必须保证（）的水密性。

接缝处

[单选题]舵杆工作表面过度磨损可以采用（）修复。

堆焊后光车

[单选题]In the （） pressure charging system the pulse of energy that occur as the exhaust is released from the cylinder to improve the output of the turbocharger.

pulse

[单选题]The gas loads on the engine structure are constrained by means of hydraulically preloaded （） which connect the bed plate, frame sections and cylinder jackets into a single unit.

tie rod

[单选题]The term （） refers to one complete sequence of operations required to produce power in an engine.

cycle

[单选题]A fuel-air mixture below the lower explosive limit is too（）.

lean to burn