请输入您要查询的英文单词:

 

单词 dwarf planet
释义

dwarf planet

noun Astronomy
A celestial body resembling a small planet but lacking certain technical criteria that are required for it to be classed as such.In 2006 Pluto was officially downgraded from planet to dwarf planet, causing much controversy in astronomical circles....
  • A paper in the journal Science has further relegated poor Pluto's status by proving that twin dwarf planet Eris is 27 per cent larger.
  • Ceres and Xena will also be considered dwarf planets.
随便看

 

英语词典包含243303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:2024/11/10 21:15:35