It is necessary to get sufficient knowledge of the indoor air velocity distribution, temperature distribution, and pollutant concentration distribution.

为了更好的控制室内空气环境，必须对室内空气流速、温度、有害物浓度的分布有一定的了解。

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Then the distribution model of elevated road pollutant concentration was established, taking vehical density as the main variable.

根据分析结果，以车密度为主要变量，建立了高架道路污染物浓度分布模式。

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The distribution of pollutant concentration is closely correlated to the distribution of pollution source and the discharge of pollutant.

污染物浓度分布与污染源的空间分布和排放量密切相关。

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