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摘要： 通过对污染物散发量呈二次多项式或正弦函数变化时通风排害基本微分方程的理论解析，得到室内污染物浓度表达式，供先导式通风计算和浓度控制参考。 关键词： 通风 污染物 散发量 浓度 先导式控制 Ventilation analysis and pre-control for varied pollutant emission rates By Kong Chuan★ and Wang Ning Abstract Based on theoretical analyses of basic differential equation of ventilation and pollutant discharge when pollutant emission rate varies in the form of quadratic polynomial or sine function, derives a formula of indoor pollutant concentration, which can be applied to pre-ventilation calculation and control. Keywords ventilation, pollutant, emission rate, concentration, pre-control ★ Sichuan University, Chengdu, China