Integrated control of gas in 13123 higher slice face 火铺矿13123上分层工作面瓦斯综合治理
2.
Study on the directly transiting technology from the under slice mining face to the upper one 下分层直接过渡到上分层开采工艺研究
3.
Analysis on danger of pressure bump when fully mechanized sublevel caving mining face passed through terminal mining line of top slicing seam 综放面过上分层终采线冲击地压危险性分析
