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glory hole method
expl.
漏斗采矿法
以竖井为中心,扩大回采面成漏斗状进行采矿的方法。矿石经过竖井下放运出,这一方法的特点是利用矿石自重将开挖的矿石集中到贮料仓中,因此节省了运输费用。其缺点是采场形成危险的陡坡,且采掘机械化程度低,所以在一些国家已不采用
glory hole method
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2 phrases
in 1 subject
Technology
2
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