• 煤层工作面中使用单体液压支柱,在支护强度初撑、可缩量安全保障操作人员安全上,优于其它单体支护材料。

    Using individual hydraulic prop in thin coal seam face is better than the others in the aspect of support strength, premary supporting force, shrink amount and safety.

    youdao

  • 煤层工作面中使用单体液压支柱,在支护强度初撑、可缩量安全保障操作人员安全上,优于其它单体支护材料。

    Using individual hydraulic prop in thin coal seam face is better than the others in the aspect of support strength, premary supporting force, shrink amount and safety.

    youdao

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