Word
illuminance
/iˈljuːminəns/
noun
入射到单位面积表面的光通量；常用勒克斯(流明/平方米)或英尺烛光度量。恒星对地球的照度常以负对数标度(即视星等)表示,参见该条。
- 1.
The luminous flux incident on unit area of a surface; commonly measured in lux (lumen/metre2) or otherwise foot-candles. The illuminance of a star upon the earth is frequently measured on a negative logarithmic scale referred to as its apparent magnitude, which see.
入射到单位面积表面的光通量；常用勒克斯(流明/平方米)或英尺烛光度量。恒星对地球的照度常以负对数标度(即视星等)表示,参见该条。
照度；[计] 照明度
Connections
Word family
- illuminances
- plural
Learner notes
Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY.