活塞环槽磨损最大的部位在A.上端面B.下端面C.内圆面D.下端面边缘请帮忙给出正确答案和分析 谢谢!
活塞环槽磨损最大的部位在
A.上端面
B.下端面
C.内圆面
D.下端面边缘
请帮忙给出正确答案和分析,谢谢!
参考解答
正确答案:B
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