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a fine-grained fertile soil consisting of mud, silt, and sand deposited by flowing water on flood plains, in river beds, and in estuaries 富含泥沙并适合谷物生长的富饶冲积层; 在平原、河床和江河的入海处被水流冲击形成
Notableeffectshave been reached by applying the researchesto guide the constructionandproduction of shafts in some mine areas of East China where is with thickalluviums .