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关注：1
2013-05-23 12:21
求翻译：直流电法在矿井超前探测中的应用研究是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
直流电法在矿井超前探测中的应用研究
问题补充： |
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2013-05-23 12:21:38
DC law applied research in the mine advanced detection
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2013-05-23 12:23:18
DC law in the mine in the early detection research
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2013-05-23 12:24:58
The direct-current electrical method surveys in advance in the mine pit the applied research
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2013-05-23 12:26:38
DC electrical method in study on application of advanced exploration in mine
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2013-05-23 12:28:18
DC Power Law in the mine in the early detection research;
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