evection
出差
E·vec·tion
1. The act of carrying up or away; exaltation. [Obs.]
2. Astron. (a) An inequality of the moon's motion in its orbit, due to the attraction of the sun, by which the equation of the center is diminished at the syzygies, and increased at the quadratures by about 1° 20´. (b) The libration of the moon.
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