他们还分析了通风装置是如何改变车内污染浓度的。
They also analyzed how ventilation Settings changed those concentrations inside of cars.
污染源清单的建立是目前城市大气污染浓度预报中的一大障碍。
The making an investigation of air pollution sources is a difficult thing for prediction of urban air quality.
路边监测站设置在马路旁，其用途在于量度路面即时的污染浓度。
Roadside monitoring stations are located by the roadside to capture pollutant concentrations at ground level.
结合当地情况对气象因子与空气污染浓度之间的相关性进行了深入地研究。
Meanwhile, the relationship between air pollutant density and weather factors connecting with the local conditions was also studied thoroughly.
分析和研究了在河流污染浓度控制中广泛应用的一维水质模型结构和应用条件。
The construction and applied condition of onedimension water quality model used extensively in concentration control of river pollution is analyzed and studied.
计算结果可为大气污染浓度的计算，大气污染防治，及环境规划等提供参考依据。
The calculated result could be used as reference for calculating pollution concentration, preventing atmospheric pollution and environmental planning etc.
针对炼油废碱液污染浓度高、可生化性差的特点，采用水解与接触氧化组合工艺进行处理。
Aiming at serious pollution and no good biochemical quality in refinery alkalinity waste liquid, using hydrolysis-contact oxidation process to treat it.
论述了微风条件下城市街道峡谷中的大气污染浓度变化与路面温度、街道空间结构及风等的关系。
The article discussed under the breeze weather in the city street canyon air pollution concentration's relationship with the pavement temperature, street space structure and wind et al.
近年来将BP网络模型应用到大气污染浓度预报中，并建立了大气污染物浓度的神经网络预报模型。
Recent years, BP model has been applied to atmospheric pollution forecast, a neural network prediction model of atmospheric pollutant concentration is set up.
该文探讨了各类土壤中铜污染对水稻产量的影响，并就农田中铜污染浓度与水稻减产的临界值作了阐述。
The paper discusses the effect of Cu pollution in various soils on the yield of rice. The viewpoint about the critical value of Cu pollution in farmland and decreasing rice yield is described.
采用有限差分法和混合有限分析法对耦合模型进行数值求解，并分析了启动压力梯度对地下水污染浓度的影响。
The finite difference method is used to solve the coupling model, and the influence of starting pressure gradient on the distribution of groundwater pollutant concentrations is analyzed.
研究人员给出的解释是冬天疾病泛滥，天气苦寒，污染浓度高，而此时的准妈妈和待产的宝宝们往往都非常脆弱。
Among the proposed explanations were diseases, harsh temperatures and higher pollution levels associated with winter when those expectant mothers and near-term foetuses might be most vulnerable.
相同污染浓度条件下，粗颗粒沉积物中重金属具有较高的初期释放量和释放强度；平衡释放浓度随粒度减小略有增大。
Under the condition of same polluted concentration, heavy metals in coarse sediment are released with greater amount and higher intensity dUring initial stage.
GC定量分析正构烷烃的结果和HPLC定量分析多环芳烃的结果均显示，天坛站点的有机物污染浓度大于十三陵站点。
Both quantitative GC data of alkanes and HPLC data of PAHs indicated that organic pollution level was higher in Temple of Heaven site than that in Ming Tomb site.
之后采用近地面尘降模型，计算了这类污染源在不同气象层结下的扩散状况，得出其污染浓度对大气环保浓度的分担率。
Then, the concentration under different wind diffusion condition are analysized by using ground pollution mode so that the ratio of contribution to the total pollution limit is obtained.
中国已承诺施行最严格的环境保护条例，并预计在2020年之前将严重污染城市的PM 2.5颗粒污染浓度降低十八个百分点。
China has vowed to launch its strictest environmental protection system and reduce the concentration of PM2.5 particulate pollution in cities with poor air quality by 18 percent by 2020.
在模型中既考虑了气象条件的作用，又考虑了污染排放量和起报日的污染浓度，与以往的空气污染预报统计模型相比，所依据的物理基础更可信一些。
In this model the effect of meteorological element, output and concentration of air pollutant were considered, so it's physical foundation may be more believable than pure statistics model.
“令人震惊的是，污染物浓度呈抽脂-滴落状，”佩恩说。
"That's where the shocking, sort of draw-dropping concentrations exist," Mr Payne said.
为应对细胞污染中出现的变异，有毒物质的浓度是逐步增加的，以此保证筛选力度的稳定。
In response to the appearance of such variants in the cell population the concentration of the toxic chemical in the growth medium is increased, thus keeping the selection pressure constant.
为了找到污染物浓度和机动车数量的关系，科学家们在北京的主要路段设置了微波雷达记录每小时机动车的流量。
To study the correlation between pollutants and traffic, microwave radars have been installed at main roads in Beijing to count the vehicles on the road each hour.
除了指导值之外，空气质量准则也为有关室外空气污染的每项空气污染物提出了过渡目标，以便促进逐渐从高浓度向低浓度过渡。
In addition to guideline values, the AQGs give interim targets related to outdoor air pollution, for each air pollutant, aimed at promoting a gradual shift from high to lower concentrations.
通过降低燃烧矿物燃料期间释放的几种最主要的空气污染物的浓度，能够大量减少对空气污染的暴露。
Significant reduction of exposure to air pollution can be achieved through lowering the concentrations of several of the most common air pollutants emitted during the combustion of fossil fuels.
即便空气污染物的浓度相对偏低，它也与一系列的健康副效应相关。
Even relatively low concentrations of air pollutants have been related to a range of adverse health effects.
研究人员的最终目标在于利用卫星数据评估并提炼出当地及地区的模型，从而预测污染物浓度对污染排放的反应。
Ultimately, researchers aim to use satellite data to evaluate and refine local and regional models to predict how pollution levels respond to changes in emissions.
现行的五年计划，其包括的数字目标没有几个，设想这期间最差的空气污染物的浓度减少10％，能源效率增长20％。
The current five-year plan, which contains few other numerical targets, envisages a 10% reduction in concentrations of the worst air pollutants and a 20% increase in energy efficiency over the period.
它们为下述选定的空气污染物的浓度限值提出了修订：可吸入颗粒物(PM)、臭氧(o3)、二氧化氮(NO2)和二氧化硫(SO2)，适用于世卫组织所有区域。
They recommend revised limits for the concentration of selected air pollutants: particulate matter (PM), ozone (O3), nitrogen dioxide (NO2) and sulfur dioxide (SO2), applicable across all WHO regions.
根据监控数据显示，今年伦敦市空气粉尘浓度第36次达到危险临界值，成为了欧洲污染最严重的城市之一。
The City of London has been found to be one of the most polluted places in Europe after monitoring equipment recorded dangerous levels of minute particles for the 36th time this year.
根据监控数据显示，今年伦敦市空气粉尘浓度第36次达到危险临界值，成为了欧洲污染最严重的城市之一。
The City of London has been found to be one of the most polluted places in Europe after monitoring equipment recorded dangerous levels of minute particles for the 36th time this year.
应用推荐