The associated gold mineralization can be classified into two types: Au (Ag) -bearing polymetallic skarn sulphide Sn-Cu deposit and Au-be.
伴生金矿床可分为含金(银)多金属矽卡岩硫化锡铜矿床及含金脉(层)状锡铅矿床。
The Al, Pb, Cu, Cd, Fe, Sn etc trace element in the electrolytic zinc were accurately and quickly measured by using ICP-AES method.
采用ICP—AES法准确、快速地测定电锌中的铝、铅、铜、镉、铁、锡等微量元素，并对方法的准确度和精密度进行了检验。
Counter-flow spray technique for the treatment of the rinsing water containing pyrophosphates in Cu- Sn-Ni alloy plating is described.
电镀焦磷酸盐铜锡镍废水由“常流水”清洗方式改为反喷淋清洗方式。
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