Application of long-reach directional drilling boreholes for gas drainage of adjacent seams in coal mines with severe geological conditions
application、conditions、mines、with、adjacent、boreholes、coal、directional、drainage、drilling
9
S;TP311.52;G25
2023-03-07(万方平台首次上网日期,不代表论文的发表时间)
共14页
75-88