Read Edit View history 天体力学 tiāntǐlìxué celestial mechanics Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 天体力学/天體力學 · tiāntǐlìxué · celestial mechanics 2026/03/04 天体力学 / 天體力學 tiāntǐlìxué celestial mechanics the study of the motions of celestial objects 天体力学研究行星和恒星的运动规律。 created sense Mar 4, 2026, 02:25 AM