The press takes use of advanced two-way cartridge valve system and imported electric pump technology which can realize double closed loop control of pressure and flow rate.
液压系统采用了先进的二通插装阀系统、进口高性能的电子泵技术，实现了主缸压力与流量的双闭环控制；
2
The paper introduces the development of the precise metering pump with two \ | way piston for sampling flue gases, its characteristic and applications.
文章介绍了双向活塞式精密气体采样计量泵的研制及其特性和应用。
3
To explicate the softstart and softstop, the control way of PLC achieve a softstarter controls two teams two uses a standby water pump motor, and analyze operation process.