Eng: Astrodynamics...

天體動力學

Astrodynamics, application of ballistics

(Celestial, Dynamic, Motive, Power, Dynamics, Physics of, Kinematics, Study, Study of)

太空動力學

Astrodynamics, application of ballistics

(Space, Dynamic, Motive, Power, Dynamics, Physics of, Kinematics, Study, Study of)