orbital mechanics meaning in Chinese

轨道力学
航天动力学
太空动力学

Applications to aerospace engineering are discussed , including introductory topics in orbital mechanics , flight dynamics , inertial navigation and attitude dynamics
亦将讨论动力学在航太工程上的应用，包含轨道力学，飞行力学，惯性导航与姿态动力学。
But they were a little sad , because it was so long between times that they got to be near each other , what with orbital mechanics being what they are and all
但是它们也有一点点的伤感，因为每颗星星都有各自运行的轨道，相互靠近需要太长太长的时间。