hydraulic actuator meaning in English

水电传动装置

Fault analysis of hydraulic actuator for sf6 circuit breaker
断路器液压机构故障分析
Industrial valves . pneumatic and hydraulic actuators . specifications
工业阀门.气动的和液压的作动器.规范
In many applications , operation of valves may require the use of electric , pneumatic or hydraulic actuators
在许多应用场合，操作阀门可能要求采用电动、气动或液动执行机构。
This paper addressed the design of the servo - control part of the control system in detail . we use hydraulic actuator and displacement sensor to set up a hydrauservo system ; we also use the hydraulic lock and embedded controller to make it safety
本文详述了地面操纵系统中液压伺服控制部份的设计：通过采用液压作动筒+位移传感器的方案来实现位置伺服控制；通过采用液压锁+嵌入式控制器的方案来保证系统的安全。