• At last, the effectiveness of using integrated geophysical methods to the coal mine gob area survey with specific engineering exploration is proved.

    最终结合具体工程勘查实践,证明煤层采空区勘查采用综合地球物理勘查技术有效性

    youdao

  • At last, the effectiveness of using integrated geophysical methods to the coal mine gob area survey with specific engineering exploration is proved.

    最终结合具体工程勘查实践,证明煤层采空区勘查采用综合地球物理勘查技术有效性

    youdao

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