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营养物基准
释义
营养物基准
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大气污染物环境基准
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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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shape blending
shape blending of surfaces
shape category
shape code
shape coexistence
shape context
shape control
shape-controlled synthesis of nanocrystal
shape correction factor
shaped activated carbon
shaped Cassegrain antenna
shaped charge blasting
shaped dual reflector
shape description
shaped-pupil coronagraph
shaped reflector
shaped tube electrochemical machining
shape-elastic scattering
shape equation of lipid vesicles
shape evolving
shape factor
shape feature
shape feature description
shape features of crude drugs
shape from contour
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