面源，是指由无数个等强度或不等强度的点源组成的平面。
...为点源(point source)；另一种为空间中蒸发分子对一定发射方向与蒸 发源表面法线间的夹角呈余弦分布，称为面源（surface source）。与 本文讨论的镀膜机 SGC-26SA 蒸发源为点源，因此下面着重讨论点源情 况。
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关键词 :效率曲面 ;真符合校正 ;面源 ;点源 [gap=4660]Key words :efficiency surface ; true coincidence correction ; plane source ; dot source
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农业面源污染 pollution from nonpoint agricultural source ; non-point source pollution ; agricultural non-point source pollution ; Agricultural diffuse pollution
农业面源污染治理 deal with pollution from non-point agricultural sources
面源分光 area spectroscopy
面源测光 area photometry
平面源 [核] plane source
无限平面源 infinite plane source ; infinite plane source of neutrons ; infinite slab source
框架页面源文件 src
浮动框架的页面源文件 src
二次表面源 quadric surface source
And agricultural non-point source pollution is the top priority.
而农业面源污染又是重中之重。
参考来源 - 重庆三峡库区典型小流域面源污染研究The superficial pollutant is a kind of contamination source of dispersion, its meaning is that the water is polluted because the dissolved contamination or the solid pollutant were scoured by the big area declines water and radial stream.
面源是一种分散的污染源，是指溶解性污染物或固体污染物在大面积降水和径流冲刷作用汇入受纳水体而引起的水体污染。
参考来源 - 旅游景区公路和栈道年径流污染负荷计算模型·2,447,543篇论文数据，部分数据来源于NoteExpress
而农业面源污染又是重中之重。
And agricultural non-point source pollution is the top priority.
农村生活污水是农村面源污染的重要来源。
The domestic sewage discharge is the important source of non-point pollution in rural area.
讨论车辆系统中起重要影响的面源输入功率。
And another important form of power imput-surface power imput of vehicle system was studied.
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