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關注：1
2013-05-23 12:21
求翻譯：故頻頻發生。自從采用新奧法、噴射混凝土和鋼拱架是什么意思？ 待解決
 懸賞分：1
- 離問題結束還有
故頻頻發生。自從采用新奧法、噴射混凝土和鋼拱架
問題補充： |
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2013-05-23 12:21:38
Therefore, frequently occur. Since the adoption of the New Austrian Tunneling Method, sprayed concrete and steel arch
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2013-05-23 12:23:18
It occurs frequently. Since introduction of the new O'Farrell, a jet spray concrete and steel arch structure
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2013-05-23 12:24:58
Therefore occurs repeatedly.Since uses the new Austria law, the shotcrete and the steel centering
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2013-05-23 12:26:38
So frequent. Since the introduction of the new Austrian method, shotcrete and steel arch
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2013-05-23 12:28:18
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