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關(guān)注：1
2013-05-23 12:21
求翻譯：混凝土材料聲發(fā)射性能的研究是什么意思？ 待解決
 懸賞分：1
- 離問(wèn)題結(jié)束還有
混凝土材料聲發(fā)射性能的研究
問(wèn)題補(bǔ)充： |
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2013-05-23 12:21:38
Concrete material properties of acoustic emission
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2013-05-23 12:23:18
Concrete materials launched voice performance studies
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2013-05-23 12:24:58
Concrete material sound launch performance research
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2013-05-23 12:26:38
Study on properties of acoustic emission of concrete materials
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2013-05-23 12:28:18
Concrete material properties of acoustic emission
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