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METHOD OF FINAL MINING OF ORES IN OPEN MINE SIDES
METHOD OF FINAL MINING OF ORES IN OPEN MINE SIDES
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机译:露天矿中矿石的最终开采方法
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摘要
the invention относитс to mining добьшающей industrial - t and m. b. used дл освоени of ores for the проектныш1.контурами quarries.the purpose of изобретени is reducing the costs of the preparator
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