胡底煤业L型井采空区瓦斯抽采技术研究
刘毅,张晓铭
Research on Goaf Gas Control using of L-shaped Well in 1301 Mining Face of Hudi Coal Mine
煤炭工程 . 2018, (9): 59 -62 .  DOI: 10.11799/ce201809017