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evection
英 [ɪˈvekʃ(ə)n] 美 [iˈvekʃən]

  • n. （天文学）出差：月球绕地球运行中因受太阳摄动而产生的一种周期性偏差。

网络释义专业释义英英释义

  月球均差

... 均差平方和 total sum of squares ; sum of squares within ; sum of squares between 月球均差 evection ; lunar inequality 标准差，均差 Standard Deviation ...

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短语

Evection & Tour knife set 差旅刀具套装

  • 出差 月球运动
    出差
  • 月行差
    月球均差
  • 突起
    隆起

·2,447,543篇论文数据，部分数据来源于NoteExpress

Evection

  • abstract: Evection (Latin for carrying away), in astronomy, is the largest inequality produced by the action of the Sun in the monthly revolution of the Moon around the Earth. The evection, formerly called the moon's second anomaly, was approximately known in ancient times, and its discovery is attributed to Ptolemy.

以上来源于: WordNet

 柯林斯英汉双解大词典 

evection /ɪˈvɛkʃən/

  • 1. 

    N irregularity in the moon's motion caused by perturbations of the sun and planets (月球运动之)出差

同近义词

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