正确答案: D

压铅

题目：必要时常用( )方法检查活塞式空压机的余隙高度。

解析：D

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举一反三的答案和解析：

[单选题]在钢丝绳中，强度最小，但重量较轻，柔软，便于使用，该钢丝绳是：()

软钢丝

[单选题]At the beginning of the watch the current operational parameters and the condition of all machinery should be verified and also the log readings should correspond with those

observed

[单选题]救生艇筏离开失事地点的航线选择应驶向：

最近陆地

[单选题]当接近救助艇、筏或过往船舶是应采取：

立泳

[单选题]对安全航速的正确解释是指：

允许有时间采取适当而有效的行动避免碰撞并能在适合当时环境和情况的距离内把船停住的速度

[单选题]发现火灾并已发出警报的船员，应尽快将什么信息报告驾驶台？

A+B

[单选题]If you suspect a diesel engine is misfiring due to air leakage into the fuel system, you should begin looking for the leak at the

suction side of the fuel oil transfer pump