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METHOD OF SEPARATE MINING OF RICH AND LEAN ORES
METHOD OF SEPARATE MINING OF RICH AND LEAN ORES
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机译:富矿和贫矿的单独开采方法
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摘要
the invention относитс to develop пологопадающих ore bodies with прослоем poor ores. the goal is to reduce the losses and разубоживание sedimentary in the development of the ore body, the ore прослое
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