新型封孔装置在顺层钻孔瓦斯抽采中的应用
张福旺,范付恒,等
Application of New Type Sealing Device on Gas Drainage of Boreholes along Coal Seam
煤炭工程 . 2013, (11): 57 -59 .  DOI: 10.11799/ce201311020