| 单词 | luminous flux |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔luminous efficiency〕The ratio of the total luminous flux to the total radiant flux of an emitting source.发光系数：任何光源所辐射的总光通量与该光源总辐射通量之比美国传统〔luminous intensity〕The luminous flux density per solid angle as measured in a given direction relative to the emitting source.发光强度：在光源的某一给定方向上测量的固定单位角度上光通量密度美国传统 |
| 随便看 |
英语例句辞典收录了559068条英语例句在线翻译词条，基本涵盖了全部常用单词及词组的例句翻译及用法，是英语学习的有利工具。