| 单词 | lumen |
|---|---|
| 音标 | ['lju:min] |
| 解释 | n.流明(光通量单位) |
| 红宝书 | 【考】 decibel : sound / lumen : light(分贝是声音的单位/ 流明是光的单位) |
| 字源 | lumen (n.) unit of luminosity, 1897, coined 1894 by French physicist André-Eugène Blondel (1863-1938) from Latin lumen "light," related to lucere "to shine" (see light (n.)). |
| 不择手段背单词 | n. 流明(光通量单位等于一烛光的均匀点光源在单位主体角内发出的光通量) 【记】音译词; lumen作为词根是光的意思. 【参】luminous(adj 发光的) 【类】decibel: sound = lumen: light = volt: electricity = watt: power分贝是声音的单位 = 流明是光的单位 = 伏特是电的单位 = 瓦特是功率的单位 |
| 趣味全助记 | 【记】译音, 流动的光明→光流→光流量单位； illuminate 阐明→明 |
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