低品位地热资源
low temperature geothermal
高硅低品位磷矿资源
low grade phosphate rock with high silicon content
高品位资源化利用
high-grade resource utilization
斑岩型低品位铜钼矿
porphyry-type low-grade copper-molybdenum ore
表外低品位矿
low-grade submarginal ore
低品位地表氧化矿石
low grade oxidized ore on the surface
低品位黄铜矿矿石
Low-grade chalcopyrite ore