flap actuator

例句：

1. 1. The flap actuator is responsible for controlling the movement of the aircraft's wings.
   翼片执行器负责控制飞机翅膀的运动。
2. 2. The flap actuator was designed to improve the aircraft's stability during takeoff and landing.
   翼片执行器被设计用来提高飞机起飞和降落时的稳定性。
3. 3. The flap actuator can be used to control the aircraft's pitch angle, which affects its maneuverability.
   翼片执行器可以用来控制飞机的俯仰角度，这会影响它的机动性。