缓倾斜破碎矿体高效进路充填采矿方法研究与应用
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Research and Application of High-efficiency Drift Backfill Mining Method in Gently Inclined Broken Orebody
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图1. 大尹格庄金矿上向水平分层进路充填采矿法示意图 |
Fig.1. Schematic diagram of upward horizontal layered drift filling mining method in Dayingezhuang gold mine |
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