(a) a former unit of luminous intensity, defined as the intensity of the flame of a spermaceti candle of specified properties (see quot. 1937)…
首页 英汉 汉英 英英 词组 用法 例句 同义词 写作 俚语 缩写 词源 词根 法汉 德汉 日汉 俄汉 韩汉 西汉 意汉 泰汉 越汉
| 单词 | θ76472 |
| 释义 | the world > matter > physics > electromagnetic radiation > light > intensity of light, luminosity > [noun] > unit of light intensity > superseded terms (3) standard candle1850 (a) a former unit of luminous intensity, defined as the intensity of the flame of a spermaceti candle of specified properties (see quot. 1937)… phot1894 A unit of the product of illumination and duration, equivalent to one lux maintained for one second. Obsolete. photon1916 Optics. A unit of retinal illumination: = troland, n. Now rare. |
| 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。