He also knows that big mining companies prefer mountains of low-grade ore to small, high-grade mines like his.
而且他也知道那些个大型矿产公司更喜欢那些低地势的矿山，而不是他那又小又高的。
2
The Longdongwan polymetallic ore deposit geostructure is in middle the Kunlun Mountains Qinling folded region Qinling system of fold Li xian-Zashui Haixi geosyncline belt of folded strata.
龙洞湾多金属矿床大地构造处于昆仑秦岭褶皱区秦岭褶皱系礼县-柞水-海西地槽褶皱带中部。
3
The Huanggang-Ganzhuermiao ore belt of east Inner Mongolia is tin-polymetallic ore belt in Southern Da Hinggan Mountains.