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關注：1
2013-05-23 12:21
求翻譯：the thin film of metal smeared across the surface due to the polishing action is removed by etching the surface with a suitable reagent是什么意思？ 待解決
 懸賞分：1
- 離問題結束還有
the thin film of metal smeared across the surface due to the polishing action is removed by etching the surface with a suitable reagent
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