gear side movement

例句：

1. 1. The gear side movement of the car is smooth and efficient.
   汽车的齿轮侧向运动平稳高效。
2. 2. The engineer made a gear side movement to adjust the speed.
   工程师做了一个齿轮侧向运动来调整速度。
3. 3. The gear side movement was responsible for the sudden acceleration of the vehicle.
   齿轮侧向运动是车辆突然加速的原因。