guide screw

例句：

1. 1. The car's engine needs a new guide screw to fix the issue.
   汽车发动机需要更换一个导向螺钉来解决问题。
2. 2.The guide screw is essential for ensuring the proper alignment of the machine parts.
   导向螺钉对于确保机器部件正确对齐至关重要。
3. 3.The guide screw was removed to replace the worn-out gears.
   为了更换磨损的齿轮，移除了导向螺钉。