• Based on the existing conditions, Pindu Municipal Gold Mine preferred short-hole shrinkage stoping without sill, intermediate and crown pillar to other mining methods and obtained excellent result.

    平度市金矿利用现有条件,因地制宜采用“三无”即底、间、矿柱浅扎留,收到了效果

    youdao

  • Based on the existing conditions, Pindu Municipal Gold Mine preferred short-hole shrinkage stoping without sill, intermediate and crown pillar to other mining methods and obtained excellent result.

    平度市金矿利用现有条件,因地制宜采用“三无”即底、间、矿柱浅扎留,收到了效果

    youdao

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