low grade phosphate rock with high silicon content  高硅低品位磷矿资源

adoption of medium and low grade phosphate rock  中低品位磷矿利用

low grade phosphate rock  低品位磷矿

medium and low grade phosphate rock  中低品位磷矿

medium and low-grade phosphate rock  中低品位磷矿

mid-low-grade phosphate rock  中低品位磷矿

using mid and low grade phosphate rock  可利用中低品位磷矿

utilization of low-grade phosphate rock  低品位磷矿利用

high magnesium phosphate rock  高镁磷矿

phosphate rock with high iron and aluminum contents  高铁铝磷矿

phosphate tailing with high magnesium content  高镁磷尾矿

Phosphate Tailings with High Magnesium Content  高镁磷尾矿

high-low-low temperature  中低低

high-low-low temperature process  中低低

liquid state with low content of alkali  液体低碱

low and medium-grade phosphate rock  中低品位磷矿

lower low-grade phosphate ore  下贫矿回采

LOW-GRADE PHOSPHATE  低品位磷矿

low-grade phosphate gangue  低品位磷矿废石