translation.en: And as I rotate it against this side shot, you'll see that that has cylinder, and that was programmed in -- literally into the physics of the system.
translation.zh: 当我从侧面旋转的时候，你会看到它是圆柱形的 也是我们预先通过程序设定的 就是我们可以 将系统的物理特性设定好