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關(guān)注：1
2013-05-23 12:21
求翻譯：主采煤層；立井單水平開拓；放頂煤；采煤方法；中央并列式是什么意思？ 待解決
 懸賞分：1
- 離問(wèn)題結(jié)束還有
主采煤層；立井單水平開拓；放頂煤；采煤方法；中央并列式
問(wèn)題補(bǔ)充： |
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2013-05-23 12:21:38
Main Coal Seams; vertical shaft single-level open up; Caving; mining methods; central parallel
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2013-05-23 12:23:18
lijin MAIN UNIT coal seams; click on develop it; Level top coal; coal; central side-by-method
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2013-05-23 12:24:58
Host mining coal level; Vertical shaft single level development; Puts goes against the coal; Mining coal method; Central compound -like
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2013-05-23 12:26:38
The main minable coal; single-level development of the shaft; top; mining method in Central side-
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2013-05-23 12:28:18
正在翻譯，請(qǐng)等待...
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