differential spur drive gear

例句：

1. 1.The differential gear is responsible for transmitting power from the engine to the wheels.
   差速齿轮负责将发动机的动力传递到车轮上。
2. 2.The differential gear is essential for maintaining proper wheel alignment.
   差速齿轮对于保持正确的轮胎对齐至关重要。
3. 3. The differential gear helps to distribute the load evenly across all four wheels.
   差速齿轮有助于均匀地分配所有四个车轮上的负载。