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单词 galactic plane
释义
galactic plane

Astronomy
  • The mean plane of our Galaxy, marked by the band of the Milky Way. It is defined by specifying the positions of the galactic poles. See also galactic equator.


Space Exploration
  • The plane passing through the Sun and the centre of our Galaxy defining the mid-plane of the galactic disc. Viewed from the Earth, the galactic plane is a great circle (galactic equator) marking the approximate centre line of the Milky Way.


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