driving pinion cover

例句：

1. 1.The car's engine is protected by a driving pinion cover.
   汽车的发动机被一个驱动齿轮罩保护。
2. 2.The technician replaced the damaged driving pinion cover.
   技术员更换了损坏的驱动齿轮罩。
3. 3.The new design of the driving pinion cover has greatly improved the car's performance.
   新的驱动齿轮罩设计大大提高了汽车的性能。