正确答案: B
进、排气阀阀杆与导套过度磨损,密封不良漏气
题目:发电柴油机吊缸检修时,如发现缸头上气阀弹簧附近有成堆的黑色油泥,则可断定是()所致。
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学习资料的答案和解析:
[单选题]厚壁瓦欲自轴承座内盘出时,应从()盘出。
瓦口较厚端
[单选题]Before "stand-by" is rung on the engine telegraph, it is usual to give the main engine () ahead and astern.
a brief trial on power
[单选题]What preventative maintenance should be done frequently to diesel engine starting air receivers?()
Drain the accumulated moisture