释义 |
ft-cenUK
ft-cenUK
illuminanceThe density of luminous power, also called illumination. One lumen of luminous flux, uniformly incident on 1 square foot of area, produces an illuminance of 1 footcandle; in SI units, one lumen of luminous flux, uniformly incident on 1 square meter of area, produces an illuminance of 1 lux.FinancialSeefoot-candleThesaurusSeeilluminance |