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单词 great circle
释义

WordReference Random House Unabridged Dictionary of American English © 2024
great circle, 
    1. Mathematicsa circle on a spherical surface such that the plane containing the circle passes through the center of the sphere. Cf. small circle.
    2. Nautical, Place Namesa circle of which a segment represents the shortest distance between two points on the surface of the earth.
    • 1585–95

Collins Concise English Dictionary © HarperCollins Publishers::
great circle n
  1. a circular section of a sphere that has a radius equal to that of the sphere
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