| 释义 |
li·bra·tion AHD[lī-brāʹshən] D.J.[laɪˈbreɪʃən]K.K.[laɪˈbreʃən]n.（名词）- A very slow oscillation, real or apparent, of a satellite as viewed from the larger celestial body around which it revolves.天平动：卫星的真正或是表面上的缓慢摆动，可以从卫星所公转的较大天体上观测到
- Latin lībrātio lībrātiōn- [oscillation] 拉丁语 lībrātio lībrātiōn- [摆动]
- from lībrātus [past participle of] lībrāre [to balance] 源自 lībrātus lībrāre的过去分词 [使平衡]
- from lībra [balance] 源自 lībra [平衡]
libraʹtional adj.（形容词）liʹbrato'ry AHD[-brə-tôr'ē, -tōr'ē] （形容词） |