low grade ore的意思|示意

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。

Reasons for resulting in high gold grade of tail water and low gold adsorption rate in the flow sheet of ore dressing are analysed comprehensively.

综合研究分析了生产中出现的尾液金品位高、金吸附率低的原因。

The high purity manganese carbonate is prepared by the process of leaching, removing impurities and crystallizing from Guangxi's low grade manganese ore.

采用广西某地低品位碳酸锰矿为原料，以硫酸浸出、浸出液除杂、碳化结晶工艺制备得到高纯碳酸锰产品。

The oxidized copper ore is low copper grade, complex minerals composition, fine-grained dissemination, high oxidation level, and high content of alkaline gangues.

某铜矿石铜品位低，氧化率高，碱性脉石含量高，嵌布粒度很细，属于典型的难处理氧化铜矿。

It is effectively on accelerating leaching speed of copper sulfide and increasing leaching rate of copper that bacteria ACTS on low grade copper sulfide ore.

利用细菌的作用对低品位硫化铜矿石进行浸出，能有效地促进硫化铜矿物中铜的浸出，提高铜浸出率。

Oxidized copper ore from the Tonglushan copper iron Mine, low in copper grade and abundant in mud and alkali gangue, is difficult to concentrate.

铜绿山铜铁矿氧化铜矿石品位低，泥和碱性脉石含量高，属难选氧化铜矿。