translation.en: The airbag-flattening algorithm came from all the developments of circle packing and the mathematical theory that was really developed just to create insects -- things with legs.
translation.zh: 那个使安全气囊变平的算法是 从那些实际上只是 发明出来用来叠昆虫， 也就是有腿的东西， 的数学理论。