1.
Exploitation of Low-grade Gold Mineral Resources at Zijinshan Gold Mine;
紫金山金矿低品位金矿资源的开发利用
2.
Extraction and utilization of the low-grade ore and construction of ecological environment in sustainable development of Zijinshan Gold Mine;
紫金山金矿可持续发展中低品位资源开发利用和生态环境建设
3.
The Necessity of Utilizing Mid-and Low-grade Phosphate Rock Resources in Yunnan Province;
云南中低品位磷矿资源利用的必要性
4.
But they sold high-grade resources to big investors and stopped prospecting, leaving low-grade gold ore unused.
他们常常把高品位的资源卖给大投资商，却置低品位的金矿石而不顾，让它荒弃掉。
5.
Development & practical use of technology of low-grade iron ore resource utilization
低品位铁矿资源利用技术的发展与实践
6.
Research progress of phosphate resource processing:3.Study on the passivation of iron and aluminum impurities in medium and low grade phosphate rock
磷矿资源加工研究进展:3.对低品位磷矿中高铁铝杂质的钝化
7.
Study on the Beneficiability of a Low-grade Molybdenum Polymetallic Ore
某低品位钼多金属矿矿石可选性研究
8.
The practice of rehandling abandoned low-grade mineral resources in Hunchun Zijin Mining Industry Co.,Ltd.;
珲春紫金回收利用废弃低品位资源的生产实践
9.
Production feasibility exploration of low grade slag and ore of some gold mine in Burma
缅甸某金矿低品位矿渣和矿石生产可行性探索
10.
Study on a Novel Hydrometallurgical Technology of Low Grade Oxide Zinc Ores;
低品位氧化锌矿湿法冶金新工艺研究
11.
Analysis on the Comprehensive Recycling Technique for the Low-grade Gold Ore in a Certain Place
浅析某地低品位金矿石综合回收工艺
12.
The practice and development orientation of heap leaching technology for low grade of oxidized ores in Miaoling Gold Mine
庙岭金矿低品位氧化矿石堆浸实践及发展方向
13.
Preliminary Study on the Grinding of Medium and Low Grade Rare-earth Containing Phosphate Ore from Zhijin,Guizhou
贵州织金中低品位含稀土磷矿石磨矿试验研究
14.
It's a mid scale and its ore belongs to low grade structural altereds tyle, limonite, pyrite are mainly gold carriers.
矿石以低品位构造蚀变岩型为主,褐铁矿、铁矿是主要的载金矿物。
15.
STUDY ON GOLD EXTRACTION FROM LOW-GRADE IRON CAP GOLD ORE WITH HIGH MUD CONTENT
低品位高含泥铁帽金矿提金工艺的研究
16.
Research of Improving the Heap Leaching Velocity of Low Grade Gold Ore;
提高低品位金矿堆浸浸出速度的试验研究
17.
Test Research on Permeability Improvement in Low Grade Argillic Gold Mine
低品位粘土型金矿提高渗透性的试验研究
18.
Study of making Al-Si alloy with red mud and bauxite
赤泥与低品位铝土矿制取Al-Si合金的研究