The contents and distribution of soil microelement follow certain regularity in the process of soil-forming.

在成土过程中，土壤微量元素的含量分布具有一定的规律性。

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The contents and distribution of soil microelement follow certain regularity in the process of soil-forming.

在成土过程中，土壤微量元素的含量分布具有一定的规律性。

youdao