请输入您要查询的英文单词:
单词
proper motion
释义
proper motion
noun
:
the apparent change in position of a star usually expressed in seconds of arc per year that results from the projection on the celestial sphere of its motion with respect to the solar system
— see tangential motion
随便看
ostracism
ostracite
ostracize
ostracizer
ostraco
ostraco-
ostracod
ostracoda
ostracodan
ostracode
ostracoderm
ostracodermi
ostracodous
ostracoidea
ostracon
ostracophore
ostracophori
ostracophorous
ostraeacea
ostrakon
ostrava
close-tongued
close to the wind
closet queen
close-up
英语词典包含332784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:2025/7/30 3:20:34