• Combining with the actual situation in coal face, expound the key technology for large inclined Angle thin seam face so as to assure that slided coal can't come in goaf.

    结合某矿采煤工作面实际情况阐述倾角煤层工作面的关键技术处理措施,保证下滑窜入采空区

    youdao

  • Combining with the actual situation in coal face, expound the key technology for large inclined Angle thin seam face so as to assure that slided coal can't come in goaf.

    结合某矿采煤工作面实际情况阐述倾角煤层工作面的关键技术处理措施,保证下滑窜入采空区

    youdao

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