多金属矿 meaning in Chinese

polymetallic ore

On the development of manganese ore deposits in southern shaanxi
锌多金属矿选矿试验研究
Geology and exploration of fine quality mn ore in china
张岩下铜多金属矿化异常区的地质与矿化特征
Study on polymetal sulfide ore flotation technology in shizhuyuan mine
柿竹园多金属矿硫化矿浮选工艺研究
The separation technology for silver - and lead - bearing complex polymetallic ore
某含银高铅复杂多金属矿的分离提取
On the structural deformation and metallogenesis in xiaoshuiilng gold multimetallic concentration area
小水井金多金属矿集区构造变形及成矿作用

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