• 掘进效率 - 引用次数：2

  Research on fully mechanized drivage of 45408 haulage roadway has achieved better technical and economical effect in WANGJIASHAN coal mine. Drivage speed is improved 93%, drivage efficiency and supporting quality are obviously increased.

  在王家山煤矿45408运输平巷综掘工作面的试验研究取得了良好的技术、经济效益,使平巷综掘速度较原来提高了93%,掘进效率和支护质量都得到了明显提高。

  参考来源 - 大倾角综放工作面平巷综掘关键工艺技术研究

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