steering gear worm

例句：

1. 1.The car's steering gear is very smooth and precise.
   这辆车的转向装置非常平滑且精确。
2. 2.The engineer was asked to inspect the steering gear for any damage.
   工程师被要求检查转向装置是否有损坏。
3. 3. The new model car has a more sophisticated steering gear system.
   新款汽车拥有更先进的转向系统。