1) Multimetal complex refractory gold ore
多金属复杂难选金矿
2) Polymetallic gold ore
多金属难选矿石
3) complex sulphide ores
复杂多金属矿
1.
In the flotation practice of complex sulphide ores, separation of copper, lead, sphalerite and pyrite still is the difficulty of this type ores, the process of nontoxic has become the research hotpot in resent years.
在复杂多金属矿浮选实践中,铜、铅、锌、硫的分离一直是选别这类矿石的难点,无毒分离工艺成为近年研究的热点。
4) Difficult multimetal sulfide ore
难选多金属硫化矿
补充资料：多难
1.众多难成之事;很多困难。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条