With a Elliptic Gears Mechanism serving as a front-position mechanism for the sheave wheel mechanism.
将椭圆齿轮作为槽轮机构的前置机构，可以减小角加速度以降低槽轮进入和退出时的冲击。
2
Jordan and Tom and I got into the front seat of Gatsby's car, Tom pushed the unfamiliar gears tentatively, and we shot off into the oppressive heat, leaving them out of sight behind.
If multiple optimal answers exist, output the answer with the smallest front gear set (smallest first gear, or smallest second gear if first gears match, etc. ).