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關注：1
2013-05-23 12:21
求翻譯：wear can be defined as the progressive loss of material from the operating surface of a body occurring as a result of relative motion at the surface是什么意思？ 待解決
 懸賞分：1
- 離問題結束還有
wear can be defined as the progressive loss of material from the operating surface of a body occurring as a result of relative motion at the surface
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