单词 | annual variation |
释义 | annual variationnoun : the yearly change in a star's mean right ascension or declination produced by precession of the equinoxes and proper motion of the star |
随便看 |
|
英语词典包含469781条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。