“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	point slope form point slope method points of finite order on elliptic curve point source Point Source Catalog Redshift Survey point-source function point-source hologram point-source model point source of water pollution Point source pollution point source pollution in ocean point source wastewater treatment point space point spectrum point spectrum type flow point sphere point spread function points problem point stabilizer point-state control point strictly above a graph point strictly below a graph point supported glass curtain wall point symbol point symbol design

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。