• The paper introduced the excavation features, blasting method and parameters, construction technology and organization of the shallow borehole smooth blasting technology in clay and rock roadway.

    介绍孔光技术黏土中的掘进特点、爆破方法参数施工工艺组织

    youdao

  • The paper introduced the excavation features, blasting method and parameters, construction technology and organization of the shallow borehole smooth blasting technology in clay and rock roadway.

    介绍孔光技术黏土中的掘进特点、爆破方法参数施工工艺组织

    youdao

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