illuvium
英 [ɪ'lu:vɪəm] 美 [ɪ'luvɪrm]

n.

淀积层；

英英释义

Illuvium

• Illuvium is material displaced across a soil profile, from one layer to another one, by the action of rainwater. The removal of material from a soil layer is called eluviation.

以上来源于:Wikipedia

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