四冲程柴油机活塞触火面裂纹主要发生在_______处A.活塞顶面B.环槽根部C.活塞销座附近D.裙部
四冲程柴油机活塞触火面裂纹主要发生在_______处
A.活塞顶面
B.环槽根部
C.活塞销座附近
D.裙部
请帮忙给出正确答案和分析,谢谢!
参考解答
正确答案:A
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