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humic property
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humic property
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农学
腐殖质特性
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humic property
腐殖质特性
热带亚热带地区土壤或黏质开裂土壤中除A层或A+AB层有腐殖质的生物积累外,B层有腐殖质的淋淀积累或重力积累的特性。是中国土壤系统分类中的土壤诊断特性之一。是腐殖湿润火山灰土、腐殖湿润变性土土类的检索条件,也是铁铝土、富铁土、淋溶土、雏形土中“腐殖”亚类的检索条件。
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finitely generated algebra
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finitely related presentation
finitely satisfiable set
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