serum cu and zn 血清铜锌
Available Cu and Zn 有效铜和锌
fe mn cu and zn 铁锰铜锌
pb cd cu and zn 铅镉铜锌
extracting cu and zn 提取铜锌
High-dose Cu and Zn 高剂量铜锌
content of cu and zn 铜锌含量
trace element Cu and Zn 微量元素铜
Afforestation in sandy soils can cause soil acidification and affect Cu and Zn release.
砂质土壤上造林会引起土壤酸化，影响铜和锌的释放。
More Cu and Zn are necessary in Guiyang, Tongren and Qiandonglan, while Zn is just for Anshun and Qianxilan.
在贵阳、铜仁和黔东南等地方可增加铜、锌肥的施用，安顺和黔西南地区可增加锌肥的施用。
The average concentrating coefficients of the vegetables for Cd, Cu and Zn were 0.017, 0.116 and 0.014, respectively.
结果表明蔬菜对镉的平均富集系数为0.017，锌的平均富集系数为0.116。铜的平均富集系数为0.014。
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