大家在查：煤柱走向长度回风巷开采损失工作面运输巷风井副井主井回采煤量开拓煤量

运输大巷

网络main haulage roadway; main haulage roadway,main haulageway

运输大巷

运输大巷

运输大巷

main haulage roadway

煤矿术语 - 豆丁网 ... main haulage level 炙输水平 main haulage roadway 运输大巷 main lateral 炙输道 ...

main haulage roadway,main haulageway

煤矿开采专... ... 大巷 main roadway 运输大巷 main haulage roadway,main haulageway 单煤层大巷 main roadway for single se…

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Bolt Mesh Shotcrete Applied to Reconstruct Roof Falling Section of Transportation Rock Roadway in Deep Mine

用锚喷网返修深井软岩运输大巷冒顶段

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Research on anti-leakage technology with thin concrete wall for coal bunker in mine transportation roadway

水平运输大巷煤仓薄壁混凝土防渗技术

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Spread and Application of Haulage Roadway Flushing and Whitewashing Wagon in Yangquan Coal Group

运输大巷洗巷刷浆车在阳煤集团的应用

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Study on the bolting and grouting techniques used in main roadway

某矿运输大巷锚注加固技术研究

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Practice on Changing Battery Locomotive into Trolley Locomotive in Main Roadway

井下运输大巷蓄电池机车改架线机车的实践

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Floor Heaving Treatment in Mine Main Transportation Roadway of Tieshenggou Mine

铁生沟煤矿运输大巷底鼓治理

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The Design of Automatic Air Door in Trackless Main Haulage Roadway

无轨运输大巷的自动风门设计

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Feasibility for Coal face Crossing through Main Road

回采工作面跨运输大巷回采可行性分析

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