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ARRANGEMENT FOR NORMALIZING HEAT DUTY OF MINE ATMOSPHERE IN BLIND WORKINGS
ARRANGEMENT FOR NORMALIZING HEAT DUTY OF MINE ATMOSPHERE IN BLIND WORKINGS
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机译:正常工作中矿井大气热负荷的安排
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摘要
the invention относитс to mountain industrial - ti. the purpose of изобретени - cost reduction for normalizing thermal environment and reducing the dimensions.дл this секци 1 with воздуховыпускным
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