“average grade of mine district”的概念、定义、翻译、参考文献-科学参考

单词	average grade of mine district
释义	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。
随便看	relative set relative singular homology group Relatives of Emperor relatives of the legal relationship relative spectral response scaling relative sphere relative stability relative standard deviation relative status incentives relative sunspot number relative super saturability relative super-saturability relative surface relative surplus value relative synonym relative tensor relative theory relative topology relative trace relative true value relative uniform convergence relative uniformity relative value relative value assessment method relative value identification method of archives

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