directional switch

例句：

1. 1. The new directional switch has improved the efficiency of our factory.
   新的方向开关提高了我们工厂的效率。
2. 2.The engineer replaced the old directional switch with a more durable one.
   工程师用一个更耐用的开关替换了旧的定向开关。
3. 3. The directional switch is responsible for controlling the movement of the vehicle.
   定向开关负责控制车辆的运动。