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营养物基准
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营养物基准
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nutrient criteria
营养物基准
水体中产生的生态效应不危及其功能或用途的营养物浓度或水平。可以反映受到人类开发活动影响程度最小的地表水体营养状态。主要指地表水体中浮游藻类生物不产生过量生长现象(水华现象),不致危害该水生态系统结构或功能的水体中营养物质的安全阈值。
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The 100-Years-Old Lady to be Commander
the 10-character regulation for salt marketing
the 10-division army system
The 11th Asian Games
The 11th G20 Summit(Hangzhou)
the 12 divisions of the Mahayana canon
The "12th Five-Year" Development Plan for the Energy Saving and Environmental Protection Industry
The "12th Five-Year" Plan for Municipal Domestic Waste Harmless Treatment Facilities Construction
The "12th Five-Year" Plan For Municipal Sewage Treatment and Recycling Facilities Construction
The "12th Five-Year" Plan for the Energy Conservation and Emission
the "12th Five-Year" Plan for Waste Recycling Technology
the 13 famous actors of Jingqiang opera
the 13th August 2010 catastrophic debris flows in sichuan province
The 13th International Symposium on the Genetics of Industrial Microorganisms
The 14th AIMAC Conference
The 15th General Assembly of ICOMOS
The 18 Decrees of the State of Qin
the 18-room metropolitan examination scoring system
The 1905 French Law on the Separation of the Churches and State
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