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畜牧富营养化
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畜牧富营养化
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农学
家畜环境
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animal husbandry eutrophication
畜牧富营养化
畜牧业生产中含氮、磷等的有机物质经土壤流入水塘、江、河、湖、海等环境,经硝化与氧化过程转变为含氮、磷的无机盐,引起藻类等生物迅速繁殖与生长,降低水体溶解氧含量,导致水质恶化,对水域环境造成危害的污染现象。
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economic information system
economic injury level
economic integration in GATS
economic intelligence
economic interest
economic landscape model
economic law
Economic Law Research Association of China Law Society
economic laws
economic legislation in the period of the French Bourgeois Revolution
economic level
economic loss of an accident
economic making-decision
economic management of resources
economic map
economic master map
economic mathematics
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