英语词汇“proper motion”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

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	Super Bowl superb paradise bird superb warbler supercalender supercargo supercede supercelestial supercentral supercentrifuge supercharge supercharged supercharged engine supercharger intrazonal soil intreat intrench intrenchment intrepid intrepidity intrepidly intrepidness intricacy intricate intricately intricateness

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。