An astronomical instrument originally devised for measuring the diameter of the sun; now much used in determining the angular distance between two…
| 单词 | θ1435 |
| 释义 | the world > the universe > cosmology > science of observation > astronomical instruments > distance between bodies > [noun] (1) heliometer1754 An astronomical instrument originally devised for measuring the diameter of the sun; now much used in determining the angular distance between two… |
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英语词典包含1132095条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。