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Failure characteristics of surface vertical wells for relieved coal gas and their influencing factor

期刊名字：矿业科学技术
文件大小：798kb
论文作者：Xu Hongjie，Sang Shuxun，Fang Li
作者单位：School of Resources and Geoscience,Huainan Mining Group
更新时间：2020-06-12
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Huainan mining area Vertical wells for relieved coal gas Failure characteristics