An efficient seal between the cylinder b
2024-01-08 175次 海船船员 反馈错误 加入收藏 正确率 : 100%
题目内容:
[单选题]A.n efficient seal between the cylinder block and cylinder heads on many diesel engines is obtained with________.
A.graphite packing
B.sealing compound
C.lubricating oil
D.gaskets
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