" Don't involute yourself, " her classmates told her.

“不要自， ” 的同学告诉。

This video by Gergely Bencsik about how involute gears work had a really satisfying way of explaining why a certain gear design pattern works so well that for me at least just stuck.

Gergely Bencsik 制作的这段关于渐开线轮如何工作的视频以一种非常令满意的方式解释么某种轮设计模式如此有效，至少对我来说只是卡住。