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關注：1
2013-05-23 12:21
求翻譯：[3] Introduction of epoxy increases the concrete durability in general as it reduces the concrete permeability.是什么意思？ 待解決
 懸賞分：1
- 離問題結束還有
[3] Introduction of epoxy increases the concrete durability in general as it reduces the concrete permeability.
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