Soil erosion and non point source pollution are two serious environmental issues.
土壤侵蚀与非点源污染是两大重要的环境问题。
Based on a point source model, new spectroscopic orbital elements are determined.
依据点源模型获得了一组新的分光轨道解。
Many studies show that wetlands can control the non-point source pollution effectively.
国内外许多研究表明，自然湿地能有效地控制非点源污染。
The field of a harmonic point source in layered media has certain angular distribution.
分层介质中简谐点源的声场具有确定的角度分布。
Calculating the environmental damage cost of a single point source is the core of this paper.
单个点源污染的环境损害成本估算是本文的核心。
SWAT model was used to evaluate agricultural non - point source pollution of Daning River watershed.
以大宁河流域为研究区域，应用SWAT模型进行了流域农业非点源污染负荷的模拟计算。
With the effective control of source pollution, non-point source pollution becomes more outstanding.
随着点源污染控制加强，非点源问题更加突出。
Of or relating to light emitted from a point source and reflected or refracted from a curved surface.
由一个点光源发出并从曲面反射或折射的光的或关于这种光的。
The treatment of point source and infinite boundary in solving the integral equation by BEM are developed.
研究了用边界单元法解积分方程中点源和无穷边界的处理方法。
The BPT regulations there covered the red meat processing segment of the meat products point source category.
“最佳实用技术”规章适用于肉制品的牛羊肉加工。这是一种特种污染源。
The reflected pressure of the fluid is similar between the plane acoustic wave and the point source acoustic wave.
因此，这两种不同入射声波的声波反射压力的变化既有不同，又有着相似之处。
Soil phosphorus as agricultural non-point source pollution is one of the main factors which lead to water pollution.
土壤磷素的农业非点源污染是导致水体污染的最主要的原因之一。
The result indicated that eutrophication would not be induced in Baiguishan Reservoir without point source pollution.
结果表明，流域内如果没有点源污染，水库不会发生富营养化。
Nutrient export coefficient of land use is an important parameter for constructing model of non-point source pollution.
各种土地利用类型营养盐输出系数是建立非点源污染模型的重要参数。
These research results have laid a foundation for further research of point source infiltration and film hole irrigation.
这些研究成果为进一步研究点源入渗和膜上灌技术奠定了基础。
It may conclude that the drainage control plays a significant role in water saving and non-point source pollution reduction.
因此，控制排水措施具有节约灌溉用水和减少农业非点源污染的重要意义。
How to regulate "non-point source" pollution, such as pesticides from agricultural run-off, is a continuing, and harder, debate.
象农业使用中飘散的杀虫剂这类“非点源”污染又如何控制？这更是个长久和难缠的辩论题。
The study on watershed distribution of agricultural non - point source pollution is important to improve environmental quality.
农业非点源污染的流域分配研究对于提高环境质量具有重要的现实意义。
The type, source and harm of pollutants of urban non-point source pollution and its influence on the receiving water are analyzed.
对城市面源污染物的种类、来源和危害，以及对受纳水体的影响两方面综合进行分析；
Nitrogen leaching from a sloping land is one of the important causes of soil degradation and agricultural non-point source pollution.
坡地氮素淋溶是导致坡地土壤质量退化和农业非点源污染的重要原因之一。
The short arc Xenon lamp is a sort of point source having very high luminous intensity and a continuous spectrum from ultraviolet to IR.
短弧氙灯是一种发光强度高，具有从紫外到红外的连续光谱的点光源。
Agricultural non point source pollution is arising more and more attentions as one of the major causes leading to deterioration of water quality.
农业非点源污染作为引起水质恶化的主要原因之一，已越来越受到人们的重视。
The rainwater is one of carriers of pollutants in urban-environment, and the polluted rainwater has been important urban non-point source pollution.
雨水是城市环境中各种污染物的载体之一，受污染的雨水已经成为重要的城市非点源污染。
The model was applied to Hanyang District, Wuhan to study urban non-point source pollution control technology, and satisfactory results were achieved.
所建模型已成功地应用于武汉市汉阳地区城市面源污染控制技术研究，获得了满意的结果。
Under the circumstance that point source pollution is basically controlled, non point source pollution has already become an important pollutant source.
在点源污染得到初步控制的情况下，非点源污染已经成为水源地的重要污染源。
Based on the actual environmental assessment, several methods on how to select parameters in the atmosphere diffusion model of point source are presented.
就实际环评工作中点源大气扩散模式计算参数选取的有关问题提出了一些新的看法。
And so, when you think about how much cement concrete are consumed annually on the planet, this becomes a considerable point source of greenhouse gas emissions.
当你想到，在地球上每年要消耗多少的水泥混凝土的时候，这将是温室气体排放的，一个主要来源。
The most ambitious water quality provision of the 1987 Amendments relates to non-point source pollution, that is, run-off from agricultural and urban areas.
1987年的修正案中，最理想的水质规定涉及到特定污染源的污染，也就是说来自农业和都市区雨水的污染。
We proposed the specific prevention tactics corresponding to pollution through the analyse of the sources of agricultural non-point source and pollution ways.
通过分析农业面源的来源、污染途径，提出了防治污染的具体措施。
With the strengthened control of point source pollution, the non-point source pollution gradually becomes the major parts of pollution in Chinese rural rivers.
随着点源污染控制的加强，非点源污染逐步成为我国乡村流域污染物构成的主体。
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