The partially shaded region around the shadow of an opaque body, when the light source is larger than a point source and only part of its light is…
| 单词 | θ81001 |
| 释义 | the world > matter > light > darkness or absence of light > intercepting or cutting off of light > [noun] > casting of a shadow > a shadow > partial (1) penumbra1665 The partially shaded region around the shadow of an opaque body, when the light source is larger than a point source and only part of its light is… |
| 随便看 |
|
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。