煤层瓦斯抽采钻孔封孔工艺对比分析与实践
Publisher： 国家哲学社会科学学术期刊数据库
E-ISSN： 2095-2562|27|4|48-51
ISSN： 2095-2562
Source： 广东石油化工学院学报, Vol.27, Iss.4, 2017-01, pp. : 48-51
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Abstract