采准
- 网络preliminary mining; stope preparation
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采准
preliminary mining
采准布置,development... ... ) development layout 采准布置 ) preliminary mining 采准 ) developing entry 采准巷道 ...
stope preparation
采矿专业英语... ... 采砂船选矿 washing process on the dredge 采准 stope preparation 采准工作量 ratio of preparation work ...
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Supporting Techniques of Preparation Roadway for Fully Mechanized Sublevel Caving in the Easily Spontaneous Combustion Coal Seam
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