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average grade of mine district
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average grade of mine district
Encyclopedia
工学
〔矿产工业指标〕
释
average grade of mine district
矿区平均品位
整个矿床(区)中有用组分的总平均含量。又称矿床平均品位。是从整体上衡量矿床贫富程度的一项参数,也是衡量某些矿床(尤其是矿石品位变化大的)在当前是否值得开发建设和开发后能否获得预期经济效益的一项指标。
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