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本文介绍了一种能实现反向冲洗的过滤器，对其结构及冲洗原理作了说明。装置利用一台可编程序控制器实行全自动控制，文中给出了控制系统的工作原理图及部分软件控制图。
This article describes a filter that enables reverse flushing, explaining the structure and rinsing principles. Device using a programmable logic controller to implement fully automatic control, the article gives the working principle of the control system and part of the software control chart.