短語詞組短語maximum spectral luminous efficacy 最大光譜發(fā)光效能;最大光譜光視效能extreme luminous efficacy 極限流明效率initial luminous efficacy 初始光效spectral luminous efficacy [光]光譜光視效能spectrum luminous efficacy 光譜流明效率luminous efficacy of radiation 光視效能effective luminous efficacy 有效光效Relative luminous efficacy 相對光效luminous efficacy of light source 光 返回 luminous efficacy