当活塞顶部 环及环槽中积存带色的灰状物质时 是由______导致 它会引起缸套严重磨损。A.燃油中杂
当活塞顶部、环及环槽中积存带色的灰状物质时,是由______导致,它会引起缸套严重磨损。
A.燃油中杂质
B.气缸油中添加剂
C.燃油燃烧不良
D.气缸油氧化
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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