actuating unit meaning in English

动力机构
驱动机组
致动组

The this aircraft appliance has the independence actuating unit and the electrical system , and uses the button common control
本机器具有独立的动力机构和电气系统，并采用按钮集中控制。
This actuator is used in the longitudinal control system of fighter t improve longitudinal control and stability , and is a power actuating unit of autopilot
用于歼击机纵向操纵系统，改善纵向操稳性能，也是自动驾驶仪的输出执行部件。