“矿区平均品位”的概念、定义、翻译、参考文献-科学参考

单词	矿区平均品位
释义	矿区平均品位 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	second normal form, 2NF second normal stress difference second number-class second of arc second of time second open Second Opium War second order second-order advantage second order arithmetic second-order arithmetic second-order calibration and three-way calibration second-order circuit second order coherence second-order coherence second-order coherence and second-order correlation function second-order constraint qualification second order correlation second order correlation function second-order correlation function second-order curve second order day number second-order derivative second-order design second-order difference

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