GRADE&INDEX 品种规格及指标
grade index 阶级索引 ; 折射率渐变型 ; 等级指数 ; 抓取的帧
grade-index 递级指数
two grade index evaluation 二级指标评判
lighting-harm degree grade index 雷电危险度综合指数
multi-grade index 多级索引
grade index series 等级指标系列
composite grade index 综合等级指数
grade index optimization 品位指标优化
Grade of UV Index 紫外线指数等级
Indeed, the index is the latest to grade China above the former British colony of India.
实际上，该指标是将中国放在原英国殖民地印度之前的最新排名。
From the results we know gross profit and NPV have obviously improved after optimization, so its reasonable for optimization grade index 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。
From the macroscopic point of view, the necessity of improving and optimizing the iron concentrate grade index, the potential technical ways and the thought on optimization study are described.
从宏观角度出发，阐述了提高和优化铁精矿品位指标的必要性、技术途径及优化研究的思路。
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