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

low grade phosphate rock with high magnesium content  高镁低品位磷矿

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

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

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

phosphate rock with middle or low grade  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

low-grade phosphate ore  低品位磷矿

middle grade phosphate rock  中品位磷矿

phosphate rock grade  磷矿品位

an extremely low-grade form of cancer  促肾上腺皮质激素释放因子; 极早期的癌症

c onsume low grade diesel  柴油低烧; 垂直冗余核对

earth-rock low mountainous area  土石质低山区