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为什么水龙头里的水会喷出来

更新时间: 2020-10-09 00:00:00     

水龙头出口是通大气的,为大气压,而水龙头内水的压强大于大气压,在压差作用下水龙头就可以出水。水龙头是与管道系统连在一起的,管道系统的水压是由自来水厂的水泵或且高位水箱维持的,在压力差的作用下,水流克服管道的沿程阻力和局部阻力,从水源通过管道系统源源不断地由水龙头流出。

关键词: 为什么 水龙 头里 出来

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