“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	Xiaochangshan Dao xiaochangshu Xiaochangtushan Dao Xiaochang Xian Xiaocheng xiaochengqi decoction Xiao Chuanjiu Xiao Chuanjun Xiao Chunü Xiao Chuo Xiao Dangui Xi'ao Dao Xiaodao Wan Xiao Dezao Xiaodian Qu Xiao Difei Xiaoding Li Xiao'e Xiao Enrong opera troupe for Kunqu and Yi opera of Qing Dynasty Xiao Erhua xiaoer huichun pill Xiao'er Yao Zheng Zhi Jue Xiao Er’hei’s Marriage Xiao Fangdeng Xiao Feng

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