secondary circle: Geometry and Astronomy, a great circle passing through the poles of another great circle perpendicular to its plane; see also B. 3…
| 单词 | θ53 |
| 释义 | the world > the universe > celestial sphere > circle of celestial sphere > [noun] > great circle > secondary circle (2) secondary circle1704 secondary circle: Geometry and Astronomy, a great circle passing through the poles of another great circle perpendicular to its plane; see also B. 3… secondary1715 Short for secondary circle at sense A. 3e. |
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