“proper motion”的概念、定义、习题解题方法及翻译-物理辞典

单词	proper motion
释义	proper motion The apparent angular motion of a star on the celestial sphere. This is motion in a direction that is perpendicular to the line of sight
随便看	optical microscope optical pumping optical pyrometer optical rotary dispersion optical rotation optical telescope optical temperature optics optoelectronics or circuit orbit orbital orbital quantum number orbital velocity order order of magnitude order parameter ordinary ray ordinate origin ortho- oscillation oscillator oscilloscope osmiridium

物理辞典收录了3346条物理词条，基本涵盖了常用物理知识及物理英语单词词组的翻译及用法，是物理学习的有利工具。