| 单词 | orbit |
| 释义 | orbit 1(in astronomy) The path through space of one celestial body about another. For one small body moving in the gravitational field of another the orbit is a conic section. Most such orbits are elliptical and most planetary orbits in the solar system are nearly circular. The shape and size of an elliptical orbit is specified by its eccentricity, e, and the length of its semimajor axis, a (see ellipse). 2(in physics) The path of an electron as it travels round the nucleus of an atom. See orbital. |
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物理辞典收录了3346条物理词条，基本涵盖了常用物理知识及物理英语单词词组的翻译及用法，是物理学习的有利工具。