土壤侵蚀的过程也是核污染扩散和迁移的过程。
The process of soil erosion is also the diffusion and migration process of nuclear pollution.
在污染扩散模型中还对平流项作“迎风”差分格式处理以避免出现浓度负值。
In the later model, the advection was treated with "windward" difference format to avoid occurrence of negative concentration.
机动车排放污染扩散模式可分为高斯模式、经验模式、数值模拟模式和箱式模式。
The vehicle emission dispersion models can be classified into Gaussian model, empirical model, numerical simulation model and box model.
从空气污染扩散方程出发，经过简化推导，得出污染预报动力统计模型的数学形式。
By simplifying the equation of air pollutant diffusing, the mathematic form of dynamic statistics model of air pollutant forecast has been worked out.
对线源模式进行了研究，提高了其计算速度及计算精度，解决了在普通微机上实现线源污染扩散的计算问题。
The line source mode was also improved with increased computation speed and accuracy, thus realizing the use of PC for line source pollution diffusion modeling.
开发了一个基于高斯扩散的大气污染扩散空间信息系统，用于模拟工业点源 污染对区域大气质量的影响。
The authors developed an air pollution dispersion system(APDS)with elevated Gauss dispersion model to simulate the impact of industrial point source pollution on region air quality.
大气污染长期扩散模型（ISCLT3）是高斯 模型的一种，是美国环境保护署强制推荐的大气污染扩散 模型，并称为法规 模型；
Long-term diffusion model of atmospheric pollutant (ISCLT3) called regulatory model is a kind of Gaussian model recommended by U. S. Environmental Protection Agency.
现在一种无形的污染正开始扩散。
这只鸟儿从浮油中被救出，“深水地平线”海上石油钻井平台倒塌后，扩散的浮油污染了大片海域。
The bird was recovered in the area where a giant oil slick spread after the collapse of the Deepwater Horizon offshore oil rig.
包括原油从哪里扩散，哪部分土地受了污染，哪些野生动物受到了影响。
This included where the oil spread, what land areas were affected, and effects on wildlife.
而这一情形反过来又会污染饮用水并引发痢疾，这种疾病的扩散速度非常之快。
That, in turn, fouls drinking water and can cause diarrhea, which spreads quickly.
这种污染物很容易在大范围的地理区域内扩散，保持其毒性，并具有在生物脂肪组织内积累的倾向。
The pollutants disperse easily across wide geographic areas, retain their toxicity, and have a tendency to accumulate in the fatty tissues of organisms.
科学家预测，如果它污染了北极，就会向世界各地扩散。
Scientists predict that if it makes it to the Arctic, it could spread around the world.
禁止污染企业和城市污染物向农村扩散，控制农村面源污染。
We will prohibit the relocation of urban polluting enterprises and dispersal of urban polluting materials in the countryside, and control non-point source pollution in rural areas.
杰夫·马斯特斯：油污将沿墨西哥湾沿岸扩散，污染大部分的海岸。
Jeff Masters: you're going to see oil get over a large portion of the shore, along a good portion of the coast of the Gulf of Mexico.
不利于污染物的扩散和降解。
并且会导致空气中污染物不易扩散，增强有害物质的毒性，严重的，还可能会导致毒雾发生。
And can lead to air pollutants is not easy to spread, enhanced the toxicity of harmful substances, serious, may also cause smog.
因此有利于污染物的扩散和降解。
It is conducive to the spread of pollutants and degradation.
官员表示北方恶劣的天气条件也影响了污染物的扩散。
Officials say unfavourable weather conditions in the capital have prevented pollutants from dispersing.
企业周围应无有害气体、烟尘、灰尘、放射性物质及其他扩散性污染源。
There shall be no harmful gas, soot, dust, radioactive substances or other diffusible sources of pollution around the enterprise.
在现场监测、污染源解析的基础上，应用修正后的高斯扩散模型，计算出燃煤污染物暴露浓度。
Based on the field monitoring , investigation and parsing of pollutants sources, a mathematic model was used to calculate the exposure to pollutants from coal burning.
研究了连续点源污染物在近区的垂向扩散规律。
The mixing law of the continuous point source, in the nature flow, is studied.
研究了连续点源污染物在近区的垂向扩散规律。
The mixing law of the continuous point source, in the nature flow, is studied.
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