“proper motion”的概念、定义、翻译、参考文献-科学参考

单词	proper motion
释义	proper motion Encyclopedia 理学天体测量学释 proper motion自行恒星在一年内沿着垂直于视线方向走过的距离对观测者所张的角度。其单位为角秒/年。 Mathematics proper motion正常运动，固有运动 Astronomy proper motion缩写：P.M.。自行
随便看	cinema in Nigeria cinema in Palestine cinema in Peru cinema in Portugal cinema in Senegal cinema in Tunisia cinema line system Cinema notebooks Cinema Novo Cinema of Moral Concern CinemaScope cinematic language cinematography Cinematography for Directors：A Guide for Creative Collaboration cinema total cinemicrography cinemicroscopy cinephotomicrography cineradiography cinerama cineroentgenography cine substitution cine theodolite cinetheodolite Cineworld cinemas

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。