The traditional gold and silver leaching method from the low grade iron-manganese gold silver ore didn't work out because gold and silver were encapsulated by iron, manganese and other minerals.
低品位铁锰型金银矿由于金银被铁锰等矿物包裹，传统浸金银的方法无法达到目的。
The traditional gold and silver leaching method from the low grade iron-manganese gold silver ore didn't work out because gold and silver were encapsulated by iron, manganese and other minerals.
低品位铁锰型金银矿由于金银被铁锰等矿物包裹，传统浸金银的方法无法达到目的。
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