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关注:1
2013-05-23 12:21
求翻译:煤矿采深持续增加使开采难度加大是什么意思? 待解决
悬赏分:1
- 离问题结束还有
煤矿采深持续增加使开采难度加大
问题补充: |
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2013-05-23 12:21:38
Coal mining depth continued to increase in mining more difficult
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2013-05-23 12:23:18
Coal mining was continued to increase to make exploitation more difficult
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2013-05-23 12:24:58
The coal mine picks deeply increases continually causes the mining difficulty enlarge
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2013-05-23 12:26:38
Mining of coal mining continued to increase the difficulty
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2013-05-23 12:28:18
正在翻译,请等待...
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