mainshaft low speed sliding gear

例句：

1. 1. The mainshaft is responsible for transmitting power from the engine to the wheels.
   主轴负责将发动机的动力传递到车轮。
2. 2. The low-speed sliding gear reduces friction and improves efficiency.
   低速滑动齿轮减少了摩擦，提高了效率。
3. 3.Mainshaft low speed sliding gear is a crucial component in modern vehicles.
   主轴低速滑动齿轮是现代车辆中至关重要的部件。