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关注：1
2013-05-23 12:21
求翻译：在采空区内上、下两巷位置孔隙率较大是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
在采空区内上、下两巷位置孔隙率较大
问题补充： |
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2013-05-23 12:21:38
Of mined zones, two Lane location porosity
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2013-05-23 12:23:18
In the empty area on the two lane, where larger porosity
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2013-05-23 12:24:58
In picks in the depletion region the top and bottom two lane position factor of porosity to be big
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2013-05-23 12:26:38
In the GoB, two lanes on porosity of large
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2013-05-23 12:28:18
in the empty area on the two lane, where porosity is large;
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