本文介绍了三种不同供水方式的集镇用水量逐时变化曲线的测定方法和成果。认为1万人左右的集镇用水量时变化系数 K 值在2.1～2.6之间。 This article describes the measurement methods and results of the time-varying curve of water consumption in towns with three different water supply methods. It is believed that when the water consumption of a township is around 10,000, the coefficient of variation K is between 2.1 and 2.6.