工程与技术Mechanical mining in some bituminous-coal mines. Progress report 8, Methods and equipment used in underground developmentJ. J Shields![Mechanical mining in some bituminous-coal mines. Progress report 8, Methods and equipment used in underground development]()
Mechanical mining in some bituminous-coal mines. Progress report 8, Methods and equipment used in underground development
J. J Shields
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《Mechanical mining in some bituminous-coal mines. Progress report 8, Methods and equipment used in underground development》，J. J…
书目信息
- 作者
- J. J Shields
- 分类
- 工程与技术
- 语言
- 英语
- 来源
- HathiTrust