相关单词临近词orbitae, orbit, Orbiting Vehicle Requirements, Orbiting Experimental Capsule, Orbiter Thermal Control Model, orbit of celestial body motion, orbit perturbation of spacecraft, Orbiting Geophysical Observatory, Orbit Adjust Propulsion Subsystem, Orbit Navigation Analysis Program, Orbiter Thermal Effects Simulator, Orbiting Astronomical Observatory 返回 orbitorrhea