求翻译：研究表明：Zn、Pb污染对土壤过氧化氢酶活性表现为抑制作用，呈显著线性负相关；而Cd污染表现为先抑制后促进。Cd、Zn、Pb单因素污染对土壤过氧化氢酶活性的抑制作用大小为Cd > Zn > Pb。是什么意思？

Studies have shown that: zn, pb pollution on soil enzyme activity expressed as inhibition of hydrogen peroxide showed a significant negative linear correlation; cd pollution performance is inhibited to promote. cd, zn, pb single factor pollution of soil over the size of the inhibition of catalase ac

Research indicates that Zn Pb , pollution of soil hydrogen peroxide enzymes active performance, stopping for a significant negative linear Cd pollution; and to promote suppression is first. , Cd Zn Pb single factors, pollution of soil hydrogen peroxide enzymes produced in the disincentive for Cd >

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Study: Zn, Pb pollution on soil catalase activity inhibition, is a significant linear negative; and after the Suppression of Cd pollution, promote. Cd, Zn, and Pb pollution on soil catalase activity in inhibitory effects of size of Cd>Zn>Pb.

The research indicated that,Zn, the Pb pollution to the soil catalase activeness performance is the inhibitory action, assumes the remarkable linear inverse correlation; But the Cd pollution performance after suppresses first promotes.Cd, Zn, the Pb single factor pollution to the soil catalase activ