pinion drive shaft

例句：

1. 1.The car's engine is running smoothly, but the pinion drive shaft has a slight wobble.
   汽车的发动机运行平稳，但是偏心驱动轴有点晃动。
2. 2.The engineer carefully inspected the pinion drive shaft before installing it in the machine.
   工程师在安装机器之前仔细检查了偏心驱动轴。
3. 3. The technician replaced the worn out pinion drive shaft with a new one to ensure smooth operation of the machine.
   技师用一个新的偏心驱动轴替换了磨损的部件，以确保机器的顺畅运行。