... burnt pyrites 焙烧黄铁矿 cobalt pyrites 硫钴矿 arsenian pyrites 含砷黄铁矿 ...
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矿石中有害元素砷主要以毒砂和含砷黄铁矿的矿物形式存在。
The harmful element As in the ore exists mainly as arsenopyrite and As-bearing pyrite minerals.
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