PDF(1032 KB)
PDF(1032 KB)
PDF(1032 KB)
U型钢支架与木棚联合支护工艺在焦家金矿的应用
({{custom_author.role_cn}}), {{javascript:window.custom_author_cn_index++;}}Application of Combined Support Technology of U-steel Stents and Wooden Shelter in the Jiaojia Gold Mine
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