the quality of being luminous; emitting or reflecting light;
"its luminosity is measured relative to that of our sun"
例句
用作名词 (n.)
The mixture reagent of hexane and acetone that brings good side-glowing luminance is used to treat the optical fibers' surface. 其中光纤表面采用侧发光处理效果较好的正己烷与丙酮混合试剂处理。
In television, the signal used for controlling the luminance values in the picture. 在电视中，用于控制画面亮度值的信号。
Luminance masking and spatial frequency masking were considered in our scheme. 此方法考虑了人的视觉所具有的亮度屏蔽和空间频率屏蔽特性。
美
['luːmɪnəns]
