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单词 evection
释义 evection
 —evectional,  adj.  
 /i vek"sheuhn/, n. Astron.
 a periodic irregularity in the moon's motion, caused by the attraction of the sun.
 [1650-60; < L evection- (s. of evectio) a going upwards, flight, equiv. to evect(us) (ptp. of evehere to carry forth, move forth) + -ion- -ION]
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更新时间:2025/1/22 16:49:45