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新闻资讯 News 煤矿瓦斯管抽放相关术语(二)发表时间:2013-10-14
瓦斯管安装相关术语: 煤层透气性系数 gaspermeability coeffiient of coal seam 钻孔瓦斯流量衰减系数 damping factor of gas flow-rate per hole 瓦斯抽放率 gas drainage effeciency 边采边抽 gas drainage while extraction 边掘边抽 gas drainage while drivage 穿层钻孔 crossing hole 顺层钻孔 hole drille along seam 斜交钻孔 inclined cross hole 平行钻孔 parallel 交叉钻孔 cross holes 高位钻孔 highly—located hole 高抽巷 highly—located drainage roadway 水力压裂 hydraulic crackin 水力割缝 hydraulic cutting 深孔预裂爆破 deer—hole pre—splitteing blasting 封孔器 hole packer 放水器 drainage device 防回火装置 flame arrestor 水封防爆箱 explosive—proof box 小编:went
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