汤, 明红, 郑州煤电股份有限公司超化煤矿，河南新密, 中国
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卷 1, 编号 1 (2019) - 论文
煤矿瓦斯抽采钻孔主要封孔方式剖析
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Address：73 Upper Paya Lebar Road #07-02B-01 Centro Bianco Singapore 534818
phone：+65 83184869
ⓒ2019 by Academic Publishing Pte Ltd