variable-drive power takeoff

例句：

1. 1.The variable-drive system allows for easy adjustment of the aircraft's altitude and speed.
   可变驱动系统允许轻松调整飞机的高度和速度。
2. 2. The variable-drive power takeoff is a crucial component in the design of modern aircraft.
   可变驱动动力起飞是现代飞机设计中至关重要的组成部分。
3. 3.During takeoff, the pilot must carefully monitor the variable-drive power to ensure safe operation.
   起飞时，飞行员必须仔细监控可变驱动动力以确保安全操作。