承磨环用青铜制造 环分为2~4段敲入环槽中 且应使承磨环外圆面较活塞外圆面高出_______mmA.
承磨环用青铜制造,环分为2~4段敲入环槽中,且应使承磨环外圆面较活塞外圆面高出_______mm
A.1
B.0.5
C.0.2
D.0.1
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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