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富营养化
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富营养化
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工学
退化湿地生态修复
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eutrophication
富营养化
生物所需的氮、磷等营养物质大量进入湖泊、河口、海湾等缓流水体,引起藻类及其它浮游生物迅速繁殖,水体溶氧量下降,鱼类及其他生物大量死亡的水质污染现象。
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National GPS Geodetic Control Network 2000
National Grand Theater
National Grand Theatre of Peru
National Grange of the Order of Patrons of Husbandry
national gravity fundamental network
National Gravity Fundamental Network 1957
National Gravity Fundamental Network 1985
National Gravity Fundamental Network 2000
national groundwater monitoring project
National Guard of Panamá
national happiness index
national health accounts
National Health and Family Planning Commission of the People's Republic of China
National Health and Family Planning Commission of the People’s Republic of China
National Health and Family Planning Commission of the PRC
national health services survey
national health system
national height control network
National Herald
National Heritage Institute
National Higher French Institute of Aeronautics and Space
National Higher Normal School of Nanking
National High Grade Inland Waterway
National High-Level Personnel of Special Support Program
National High Technology Research and Development Program("863"Program) of China
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