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關(guān)注：1
2013-05-23 12:21
求翻譯：more than 90% by weight of the metallic meterials used by human beings are ferrous alloy是什么意思？ 待解決
 懸賞分：1
- 離問題結(jié)束還有
more than 90% by weight of the metallic meterials used by human beings are ferrous alloy
問題補充： |
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