- an imaginary sun moving along the celestial equator at a constant rate and completing its annual course in the same time as the sun takes to move round the ecliptic at a varying rate. It is used in the measurement of mean solar time
| 单词 | mean sun |
| 释义 | WordReference Random House Unabridged Dictionary of American English © 2024 mean′ sun′, [Astron.]
Collins Concise English Dictionary © HarperCollins Publishers:: mean sun n
|
| 随便看 |
|
英语词典包含188688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。