steering gear housing top cover

例句：

1. 1.The car's steering gear housing top cover was damaged during the accident.
   汽车的转向齿轮壳体顶部盖在事故中受损。
2. 2. The mechanic replaced the steering gear housing top cover with a new one.
   技师用一个新的来替换转向齿轮壳体顶部盖。
3. 3.The car's performance improved significantly after the replacement of the steering gear housing top cover.
   更换了转向齿轮壳体顶部盖后，这辆车的性能有了显著提升。