工程与技术Mechanical mining in some bituminous-coal mines. Progress report 5, Extraction of pillars with mechanized equipmentLouis A Turnbull![Mechanical mining in some bituminous-coal mines. Progress report 5, Extraction of pillars with mechanized equipment]()
Mechanical mining in some bituminous-coal mines. Progress report 5, Extraction of pillars with mechanized equipment
Louis A Turnbull
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《Mechanical mining in some bituminous-coal mines. Progress report 5, Extraction of pillars with mechanized equipment》，Louis A…
书目信息
- 作者
- Louis A Turnbull
- 分类
- 工程与技术
- 语言
- 英语
- 来源
- HathiTrust