noun🔗Share亮度，光辉. The state of being luminous, or a luminous object; brilliance or radiance"The full moon's luminosity lit up the entire backyard, making it easy to see even without a flashlight. "满月的亮度照亮了整个后院，即使没有手电筒也能看得清楚。physicsastronomyenergyappearanceChat with AIVocabulary GamePractice Reading
noun🔗Share亮度, 光度 The ratio of luminous flux to radiant flux at the same wavelength; the luminosity factor"The physics lab carefully measured the luminosity of the new LED bulb to determine its efficiency in converting electrical power into visible light compared to the total energy it emitted. "物理实验室仔细测量了这种新型LED灯泡的发光效率 (光视效能)，以确定它在将电能转化为可见光方面的效率，并将其与它所发出的总能量进行比较。physicsenergyastronomyscienceChat with AIVocabulary GamePractice Reading
noun🔗Share光度，发光强度。 The rate at which a star radiates energy in all directions"Astronomers measure a star's luminosity to understand how bright it truly is. "天文学家测量恒星的光度，从而了解它真正的发光强度。astronomyphysicsenergyChat with AIVocabulary GamePractice Reading
