gas drainage roadway 排瓦斯巷道
End-located drainage roadway 底抽巷 ; 结束抽放巷 ; 端设排水公路 ; 最终位于排水巷道
highlylocated drainage roadway 高抽巷
gas s drainage roadway 排瓦斯巷道
The results of experiment testify that the method not only realizes the normal ventilation and gas drainage in drivage roadway but also saves energy.
实验表明，该方法能较好地实现掘进巷道的正常通风和瓦斯排放，并达到节能效果。
The dynamic process of the roadway drainage in the side slope is simulated by using boundary element numerical method.
应用边界元数值方法模拟研究了巷道疏干边坡地下水的动态过程。
On-the-spot investigation was made on the basic parameters of gas drainage in drivage roadway in Huainan Coal Mining Area, and reasonable arrangement range of rib bore-holes an...
现场考察了淮南矿区掘进巷道瓦斯排放的基本参数，确定了巷帮钻孔的有效布置范围和合理抽放时间。
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