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关注：1
2013-05-23 12:21
求翻译：水泥基材料及制品发展滞后是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
水泥基材料及制品发展滞后
问题补充： |
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2013-05-23 12:21:38
Cement-based materials and products development lags behind
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2013-05-23 12:23:18
Cement-based materials and products development lags
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2013-05-23 12:24:58
The cement parent metal anticipates the product development lag
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2013-05-23 12:26:38
Cement-based materials and products development
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2013-05-23 12:28:18
Cement base material and products develop and lag behind
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