zinc and lead middlings
... and lead clcines 锌铅焙砂 zinc and lead middlings 锌铅中矿 zinc anode cathodic protection system 带锌阳极的阴极防护系统 ...
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铅锌中矿 lead and zinc middlings
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建立火焰原子吸收光谱法用于测定矿物药赭石和红矿中微量元素钙、铜、锌、锰、镍、铬、铅的含量的方法。
Established a method determining the content of trace elements copper, zinc, manganese, lead, chromium, calcium, nickel of haematitum and red ore by FAAS.
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