• The measurement method is demonstrated valid in outburst elimination by the examination of remnant gas pressure, pre-drainage rate and the zonal verification during the coal roadway driving.

    残余瓦斯压力和预抽率的检验以及煤巷掘进期间的区域验证,均证明按该方法布置的预抽钻孔,消突效果有效。

    youdao

  • The measurement method is demonstrated valid in outburst elimination by the examination of remnant gas pressure, pre-drainage rate and the zonal verification during the coal roadway driving.

    残余瓦斯压力和预抽率的检验以及煤巷掘进期间的区域验证,均证明按该方法布置的预抽钻孔,消突效果有效。

    youdao

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