...e 效率这一问题,在消化吸收引进国外泵站技术的基础上,经过几年研究,结合国内泵站运simmnjcbe PCP（Pump-Control-Pump，泵控泵）压流可调高效自动化注水泵站系统（简称PCP系统）是一套复杂的高压大流量注水设备系统，涉及地质学、石油...
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The technology process and the control demands of a waste water pump are presented, and the design of hardware and software based on PLC for the pump station automatic control are described.
介绍了一个污水泵站的控制工艺和控制要求，阐述了泵站自动控制系统中plc的硬件、软件设计。
Therefore to understand a single pump or more transmission characteristics of the noise, heat pump unit base to explore ways to control noise, has a practical significance in general.
因此了解单台或多台热泵的噪声传播特性，探讨热泵机组群噪声防治的方法，具有一定的普遍现实意义。
The control scheme for multi pump operation is thus improved, which changes pump frequency and controls pump operation according to water consumption.
改进了多台水泵的控制方式，即根据系统用水量改变水泵频率从而控制水泵的运行情况。
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