The character projects have been listed as the first gradeindex in the undergraduate course teaching evaluating.
本科教学评估中，特色项目被列为了一级指标。
2
From the results we know gross profit and NPV have obviously improved after optimization, so its reasonable for optimization gradeindex on this mine.
结果表明，优化后该矿的总利润和净现值有了明显的提高，说明将该矿的品位指标进行优化是合理的。
3
The gradeindex is different objectively, and gradeindex has great correlation with arable land quality, which is premise of Grade-Determination of arable land.