The Cu Pb clad samples were used to simulate the strands with liquid core and the deformation characteristics of the sample in the rolling process were investigated by visio plasticity (mesh) method.

用视塑性(网格)方法研究了铜复铅芯模拟样品轧制时的变形行为，与无铅芯的样品进行了比较，由此了解带液芯连铸坯轻压下时的变形特征。

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Comprehensive effects of cu, Pb and Zn in Soil on growth, yield and quality of rice have been studied through a series of pot culture experiments with a 4 level and 3 factor orthogonal design.

采用4水平3因子正交试验设计，通过盆栽试验，用添加法研究了铜、铅、锌及其复合污染的红壤性水稻土对水稻生长、产量、品质的综合影响。

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Higher selective composite collectors and combined depressants without cyanide were used in part-bulk flotation and Cu-Pb separation of Pb-Zn ore containing silver and copper.

采用一段磨矿-部分混合浮选-混精铜铅分离、混选尾矿选锌流程及无氰药剂，提高了精矿品位及铜、铅、锌、银回收率。

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