忻州窑矿西二盘区11#层8919综放面上隅角瓦斯防治技术

忻州窑矿西二盘区11#层8919综放面上隅角瓦斯防治技术的英文翻译

基本释义

• Precaution technology of gas in upper corner in 8919 fully mechanized mining work face in 11 coal seam in west second panel in Xinzhouyao coal mine