2026-04-13 09:45 浏览次数 18
高瓦斯
gas drainage in high gassy coal seam with low gas permeability is always an hard solved significant technology problem in the process of safety production.
高瓦斯低透性煤层的瓦斯抽放,一直是煤矿安全生产过程中的重大技术难题。