Application of coal mine roof rating (CMRR) to extended cuts

被引：0

作者：

Mark, C. ^{[1
]}

机构：

[1] Natl. Inst. Occup. Safety and Hlth., Pittsburgh Research Laboratory, Pittsburgh, PA, United States

来源：

Mining Engineering | 1999年 / 51卷 / 04期

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暂无

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学科分类号：

摘要：

引用

页码：52 / 56

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