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關注：1
2013-05-23 12:21
求翻譯：年前, 我國的隧道支護主要采用木支架, 重大傷亡事是什么意思？ 待解決
 懸賞分：1
- 離問題結束還有
年前, 我國的隧道支護主要采用木支架, 重大傷亡事
問題補充： |
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2013-05-23 12:21:38
Years ago, the tunnel support with wooden supports, heavy casualties things
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2013-05-23 12:23:18
Years ago, my main support of the tunnel with wooden stand, major injury or death,
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2013-05-23 12:24:58
The year ago, our country's tunnel supports and protections mainly uses the bust peg, heavy casualty matter
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2013-05-23 12:26:38
Years ago, my tunnel support is mainly made of wood brackets, heavy casualties
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2013-05-23 12:28:18
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