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急倾斜厚煤层水平分层下行陷落金属网假顶采煤法 by 燃料工业部煤矿管理总局技术处(编) is a nonfiction available to read on EtoBox.
It is typically read by self-directed learners exploring a subject in depth.
Common subject areas: history, science, philosophy, social sciences.
- Author
- 燃料工业部煤矿管理总局技术处(编)
- Publisher
- 燃料工业出版社·北京
- Published
- 1954
- Language
- ZH
- Category
- nonfiction
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