矿石品位 meaning in Chinese

grade of ore
ore grade
tenor of ore

Grey system theory - based ore grade forcasting model and its application
基于灰色系统理论的矿石品位预测模型及其应用
Addressing problems of failure to meet requirement in ore quality of oremarket at the second stage mining , meishan mining company , the paper analyzes the reasonsand explores ways of raising ore grade
针对上海宝钢集团梅山矿业公司在进入二期开采后，出现的矿石品位下降，不能满足市场需求的矛盾，分析原因，并探索了提高原矿品位的有效途径。