送料系统设置有控制器，分 别连接计量加压泵的驱动电机和气动球阀。
The material delivery system is provided with a controller that is respectively connected with the driving motor of the metering pressure pump and the pneumatic ball valve.
液压系统中的液压油泵是为液压传动供给加压液体的一种液压元件，它是泵的一种。
The hydraulic system is pressurized hydraulic pump for a hydraulic fluid for the hydraulic drive device is supplied, it is a pump.
用该系统实行恒压供水取代传统的供水方式，不仅控制方便、灵活，还可省去高位水塔或直接加压的泵系统等；
The system can replace the traditional water supply mode, not only convenient and flexible in control, but also a high water tower or add to press directly of the pump system etc;
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