zinc ore crude
... 锌原矿 zinc ore crude 原矿舍 crude ore bin 原矿生铁 iron ...
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某铅锌选厂原矿为高硫难选矿，尾矿中仍有少量锌未能有效回收。
Zinc content of the tailings of a lead-zinc mine, which is difficult dressing and has high sulfur, is a little high.
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