It is recommended that minimum industrial grade and average grade of ore deposit in commercial factors can be canceled in order to suit for these two new standards.
附带建议在矿产工业指标中取消最低工业品位和矿床平均品位以与上述两个新标准接轨。
It is recommended that minimum industrial grade and average grade of ore deposit in commercial factors can be canceled in order to suit for these two new standards.
附带建议在矿产工业指标中取消最低工业品位和矿床平均品位以与上述两个新标准接轨。
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