论述了利用变频器、压力传感器、可编程序控制器以及自制的控制器组成的改进型消防恒压供水控制系统。
This thesis discusses improved water supply control system with constant pressure in the fire fighting that is composed of transducer, pressure sensor, PLC as well as homemade controller.
由于变频调速技术和可编程程序控制器的应用灵活方便，在恒压供水系统中亦得到广泛的应用。
As the application of the frequency control technology and programmable logic controller is flexibility, in the constant pressure water supply system they has been widely used.
由于变频调速技术和可编程程序控制器的应用灵活方便，在恒压供水系统中亦得到广泛的应用。
As the application of the frequency control technology and programmable logic controller is flexibility, in the constant pressure water supply system they has been widely used.
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