The slag heaps hold massive dumps of crushed rock discarded after gold extraction.
矿渣堆由金矿挖掘后遗留下来的大量碎石所组成。
Zinc kiln slag contained some valuable and recoverable metals, such as silver, gold, gallium, germanium, etc.
锌窑渣含有浸出渣处理后残留的银、金、铜、镓、锗等有价金属，是有回收价值的综合利用物料。
The copper, the gold and the silver in the cyanide slag can better float in the floatation process after having fresh surface.
氰化渣中的铜、金和银有了新鲜表面后在浮选过程中能较好的浮游。
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