Read Edit View history 天平动 tiānpíngdòng libration Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 天平动/天平動 · tiānpíngdòng · libration 2026/03/04 天平动 / 天平動 tiānpíngdòng libration (astronomy) libration 月球的天平动使我们能够观察到月球背面的一小部分。 created sense Mar 4, 2026, 02:25 AM