短語詞組短語relative spectral energy power distribution 相對光譜能量功率分佈relative spectral power distribution [光]相對光譜功率分佈Visible spectral power distribution 可見光光譜能量分佈function of spectral power distribution 光譜功率分佈函數(shù)power spectral distribution 攝動譜分佈power spectral density distribution 功率譜密度分佈 返回 spectral power distribution