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- A model was developed to estimate the traffic pollutant concentrations along roadside in one step with artificial neural network technique. 摘要利用人工神经网络技术设计了一段式计算路侧道路交通污染物浓度的模型。
- The methods described in this chapter and utilized in the sample problem calculation can't be expected to yield perfect predictions of groundlevel pollutant concentrations. 用本章所介绍并用在实例计算中的方法,不能期待得到地面污染物浓度的精确预测值。
- The methods described in this chapter and utilized in the sample problem calculation can't be expected to yield perfect predictions of ground level pollutant concentrations. 用本章所介绍并用在实例计算中的方法,不能期待得到地面污染物浓度的精确预测值。
- Hence vehicle occupants are exposed to air with pollutant concentrations 2-4 times higher than that breathed by vehicle occupants, depending on the type of pollutant. 因此车辆上的乘客所面对的空气污染密度比骑车人要高2-4倍,污染物不同,程度也不一样。”
- We suggested that it was neccessary tocontrol pollutant concentration atsoure of leachate production. 结论:应从渗滤液产生的根源上控制污染物浓度。
- This chapter describes methods of estimating airborne pollutant concentration distrubutions associated with various emission sources. 本章论述几种有关各种排放源的大气污染物浓度分布的估算方法。
- The concentration sub-model shows that the pollutant concentration event only changes with the runoff event at the gully. 浓度子模型则反映了雨水口入流污染物浓度仅随入流流量而变化。
- This chapter describes methods of estimating airborne pollutant concentration distributions associated with various emission sources. 本章论述几种有关各种排放源的大气污染物浓度分布的估算方法。
- Pollution concentrations in street canyons with canyons width/height ratio around 1,with step\|up notch configuration or with wider street are relatively low. 街道峡谷宽高比接近1时,递升型峡谷以及宽阔街道有利于污染物的扩散;
- We present a methodology for computing daily pollutant concentration fields that reduces exposure uncertainty and bias by taking account of spatial variation in air quality. 我们呈现一个方法来计算每天污染物的浓度,以减少在考虑空气品质的空间变异性时,对于暴露的不确定性及偏差。
- The paper shows the changing feaures of day and season for automobile tail gases exclude waste maerials in BenXi City, and the relativity of pollution concentrations and automobile discharges. 本论文指出了本溪调频汽车排放物的日变化和季节变化的特征,以及污染物浓度与汽车流量的相关性。
- pollutant concentration governance of town 小城镇污染集中治理
- Discharge pipe take pollutant away from the coastal area into the sea. 排泄管道将污染性物质由沿海岸区排入大海。
- A study of air flow patterns affecting pollutant concentrations in the Central Region of Mexico 墨西哥中部地区气流类型影响污染物浓度的研究
- The calculated result could be used as reference for calculating pollution concentration, preventing atmospheric pollution and environmental planning etc. 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。
- Study on Spatial Distribution of Air Pollutant Concentrations from Mobile Sources in Urban Area of Macao 澳门半岛机动车排放污染物的浓度空间分布研究
- Some of the concentrations are negligibly small. 某些浓度小到可以忽略不计。
- Temporal and Spatial Distributions and Influencing Factor Analysis of Air Pollutant Concentrations in Fuzhou 福州市污染物浓度时空分布及影响因子分析
- Research on variations of asphalt felt roof runoff pollutant concentrations during the rainfall 沥青油毡屋面降雨径流污染物浓度历时变化研究
- Freckles are simply concentrations of melanin. 雀斑不过是高浓度的黑色素。