spectral-absorption factor spectral analysis spectral band spectral class spectral classification spectral colour spectral concentration spectral contour spectral decomposition spectral density spectral distribution spectral distribution curve spectral-distribution law spectral emissivity spectral hue spectral line spectral luminuous radiation spectral radiance spectral range spectral reflectance |
spectral-absorption factor спектрален коефициент на поглъщане Търсената дума е намерена |