请输入您要查询的英文单词:

 

单词 hour circle
释义

WordReference Random House Unabridged Dictionary of American English © 2024
hour cir′cle, [Astron.]
  1. Astronomya great circle on the celestial sphere passing through the celestial poles and containing a point on the celestial sphere, as a star or the vernal equinox. Also called circle of declination. 
  • 1665–75

Collins Concise English Dictionary © HarperCollins Publishers::
hour circle n
  1. a great circle on the celestial sphere passing through the celestial poles and a specified point, such as a star
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。

 

Copyright © 2004-2022 Newdu.com All Rights Reserved
更新时间:2025/7/23 9:54:12