软弱复杂矿岩
soft and intricate ore-rock
钨复杂矿物
complex tungsten minerals
复杂多层薄矿体
Complex multi-seam thin ore bodys
复杂多金属矿
Complex multi-metal ore
Complicate Polymetallic mine
complication multi-metal ore
复杂多金属硫化矿石
complex polymetallic sulfide ore
复杂金精矿
refractory gold concentrates
复杂硫化钴矿
Complex cobalt sulphide ore
复杂硫化铜矿石
complex sulfide copper ore
复杂难采矿体
complex and difficult-to-mine orebody
复杂难选铅锌矿石
Complex refractory Pb Zn ore
复杂难选铁矿石
Complex refractory iron ore
复杂铅锌硫化矿
intricate Cu-Pb-Zn sulphide ore
complex Cu-Pb-Zn sulphide ore
复杂铜铅锌矿选
complex copper-lead-zinc polymetallic sulphide ore