speedometer driven gear

例句：

1. 1. The speedometer driven gear is responsible for the car's acceleration and deceleration.
   速度计驱动齿轮负责汽车的加速和减速。
2. 2.The engineer replaced the worn-out drive gear with a new one to improve the performance of the machine.
   工程师用新的驱动齿轮替换了磨损的齿轮，以改善机器的性能。
3. 3. The gearbox, consisting of several driven gears, allows for smoother shifting between gears.
   齿轮箱由几个驱动齿轮组成，使得在换挡时更加平滑。