请输入您要查询的英文单词:

 

单词 ephemeris time
释义 ephemeris timen.(名词)
  1. A highly accurate astronomical system for the measurement of time based on the period of Earth's orbit, but in practice relying on lunar observations and an accurate lunar ephemeris.历书时:一套计量时间的极端精确的天文学系统,它通常基于地球的公转轨道, 但在实践中依据对月球观测和一个精确的月球星历表
随便看

 

英汉双解词典包含166908条英汉词条,基本涵盖了全部常用单词的翻译及用法,是英语学习的有利工具。

 

Copyright © 2004-2022 Newdu.com All Rights Reserved
更新时间:2025/1/6 15:28:07