The structure and principle of a constant pressure water supplying system were presented in this paper.
介绍了一种恒压供水控制系统的构成及设计原理。
It also introduces the composition and operational principle of a changing frequency and constant pressure water supplying system.
同时介绍了变频恒压供水系统的构成和工作原理。
The composition and operational principle of an automatic frequency con version constant pressure water supplying system based on PLC and frequency convertor with serial communication are introduced.
介绍了一种基于PLC和变频器采用串行总线方式通讯的变频恒压供水系统的构成和工作原理。
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