In scientific use; The edge or boundary of a surface. The edge of the disk of a heavenly body, esp. of the sun and moon.
| 单词 | θ362 |
| 释义 | the world > the universe > heavenly body > [noun] > disc > edge of (2) limba1676 In scientific use; The edge or boundary of a surface. The edge of the disk of a heavenly body, esp. of the sun and moon. Subcategories:— vertex of (1) |
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