differential master gear

例句：

1. 1.The differential master gear is a crucial component in the transmission system.
   差速器主齿轮是传动系统中的一个关键部件。
2. 2. The differential master gear helps to distribute the load evenly across the wheels.
   差速器主齿轮有助于将负载均匀地分布在车轮上。
3. 3. During heavy braking, the differential master gear helps to absorb the shock and prevent damage to the vehicle.
   在重刹车时，差速器主齿轮有助于吸收冲击，防止对车辆造成损害。