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单词 great circle
释义

great circle

noun
A circle on the surface of a sphere which lies in a plane passing through the sphere’s centre. As it represents the shortest distance between any two points on a sphere, a great circle of the earth is the preferred route taken by a ship or aircraft.A spherical triangle is the space included by arcs of great circles on the surface of a sphere… these arcs are always less than a semicircle....
  • It consisted of a system of rings corresponding to the great circles of the celestial sphere with a central tube which was used to line up stars and planets.
  • The great circle distances between the latitude and longitude coordinates of the population centroids for each pair of counties were used in the denominator.
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更新时间:2024/11/13 18:03:39