needle pivot

例句：

1. 1.The needle pivot of the machine is located at the top of the gearbox.
   机器的针尖支点位于变速箱顶部。
2. 2.The team's performance was a needle pivot in their season.
   该队的表现是他们赛季中的关键转折点。
3. 3. The new design has a more intuitive needle pivot for better user experience.
   新设计具有更直观的针尖支点，以提供更好的用户体验。