luminance value

例句：

1. 1. The new LED light bulb has a much higher luminance value than the old one.
   这款新型LED灯泡的亮度值比旧款高很多。
2. 2.The experiment measured the luminance value of different materials under different conditions.
   实验测量了不同材料在不同条件下的光亮度值。
3. 3.The luminance value is an important factor in determining the brightness of a scene.
   光亮度值是决定场景亮度的重要因素。