spec. Astronomy circle of altitude n. a small circle parallel to the horizon, having its pole in the zenith; an almacantar. circle of curvature n.…
| 单词 | θ229 |
| 释义 | the world > the universe > heavenly body > movement of heavenly bodies > [noun] > movement in orbit > orbit > diurnal circle (4) diurnal circle1774 spec. Astronomy circle of altitude n. a small circle parallel to the horizon, having its pole in the zenith; an almacantar. circle of curvature n.… Subcategories:— parts of (3) |
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