chain gearing

例句：

1. 1.The new car has a high-performancechain gearing system that makes it acceleratequickly.
   这款新车配备了高性能的链条传动系统，使得加速非常迅速。
2. 2. The old machinehad worn out its chain gearing,so it needed to be replaced.
   旧机器的链条传动装置磨损了，需要更换。
3. 3.The engineer designed a new chain gearingsystem to improve the efficiency of the factory's machinery.
   工程师设计了一种新的链条传动系统，以提高工厂机械的效率。