PDF(4364 KB)
PDF(4364 KB)
PDF(4364 KB)
新城金矿阶段空场嗣后充填法开采大直径深孔切槽爆破方法
({{custom_author.role_cn}}), {{javascript:window.custom_author_cn_index++;}}Large Diameter Long Hole Cutoff Slot Blasting Method for Sublevel Open Stoping with Delayed Filling in Xincheng Gold Mine
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