Steep pitch mining of thick coal veins

被引：0
|
作者：
Whildin, WG
机构：
来源：
TRANSACTIONS OF THE AMERICAN INSTITUTE OF MINING AND METALLURGICAL ENGINEERS | 1914年 / 50卷
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暂无
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
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页码：698 / 722
页数：25
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