improve iron concentrate grade 提高铁精矿品位
cu concentrate grade 铜精矿品位
fe-concentrate grade 铁精矿品位
iron concentrate grade 铁精矿品位
economic concentrate grade 经济精矿品位
The concentrate grade was 20.14% with the recovery of 78.98%.
采用组合磨矿的闭路试验得到最终精矿品位为20.14%，回收率为78.98%。
The anionic reverse flotation ensures qualified concentrate grade.
阴离子反浮选保证了精矿品位合格。
At present, there are problems of both low concentrate grade and low recovery in the production.
目前，在生产中存在着精矿品位及回收率均比较低的问题。
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