Contents of various species of soil Cd increased with increasing external Cd concentrations.

在单一镉污染土壤中，土壤中各形态镉含量均随着外源镉浓度的增加而增加。

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Contents of various species of soil Cd increased with increasing external Cd concentrations.

在单一镉污染土壤中，土壤中各形态镉含量均随着外源镉浓度的增加而增加。

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