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illuvial adj.【地質學;地理學】淀積層的;與淀積層有關的;淀積...

illuviate

They do not have an illuvial horizon enriched with either silicate clay or with an amorphous mixture of aluminum and organic carbon 沒有富含硅酸鹽粘土或鋁有機碳非晶質混合物的淀積層。