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  1. Oxford American Dictionary

    evection

    • IPA[əˈvekSHən]

    美式

    • n.
      regular variation in the eccentricity of the moon's orbit around the earth, caused mainly by the sun's attraction.

    • noun: evection

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    evection

    • IPA[ɪˈvɛkʃn]

    英式

    • n.
      regular variation in the eccentricity of the moon's orbit around the earth, caused mainly ...

    Oxford Dictionary