利用大气扩散理论分析了静风和重力沉降两种作用对尘粒在大气中扩散的影响；
The atmosphere dispersion theory was used to analyze the influence ol calm wind and gravity action on the diffusion of dust particles .
以移动烟团积分模式为基础，采用数学模型分析法，从理论上导出了小风和静风状态下的TSP大气扩散模式。
Based on the moving puff integration model, TSP atmospheric diffusion model in conditions of light air and calm has been derived theoretically by a method of mathematical model analysis.
地面散热量的增加会强化污染物的扩散，有助于将其排出庭院建筑，该作用在静风状态下表现的更加明显。
The increasing ground heat release would strengthen the air exchange rate within the courtyards, thus lead to the decrease of pollutant concentration.
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