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汉语拼音：liàng dù

发光体或反光体使人眼睛感到的明亮程度。亮度和所看到的物体的大小、发光或反光的强度及距离有关。

1. 物理学名词。发光体或反光体使人眼睛感到的明亮程度。亮度的大小和所看到的物体的大小、发光或反光的强度及距离有关。

• The faintest star you can see with a telescope (under excellent seeing conditions) is referred to as the limiting magnitude.

  通过望远镜（观察条件相当良好）所能看到的最暗的星的等级称作边缘亮度。

• The AXD series is a group of high-brightness point light sources having a continuous spectrum similar to that of the sunlight .

  该产品是一种高亮度的点光源，具有像阳光一样的连续光谱。

• It shone brilliantly for a week or two and then its brightness subsided.

  它辉煌地照耀一、二个星期后，亮度减退。

• Lights are bright enough to be noticed without blinding drivers in the dark.

  灯光有黑暗中不至致盲司机的能引起注意的足够亮度。

• Rich, saturated colors (think deep purples, greens, reds, and blues) instantly brighten up the skintone, which tends to get sallow with age.

  饱满、丰富的颜色立即提升了皮肤的亮度（考虑一些深紫、紫色、绿色、红色和蓝色）。

• The natural world has such a large range of brightnesses, but a computer screen can only display a very narrow range of them.

  自然世界的亮度是一个非常大的范围，但是电脑屏幕只能显示他们之间的一段很窄的范围。

• In these new designs, half of the total pixels are arranged in a panchromatic checkerboard and used for luminance.

  在这新设计中，有总像素的一半是全色像素，用于亮度信息。

• Therefore, the interior should retain a low degree of light, its brightness to be able to see the books and writing as appropriate.

  所以，室内应当保留一个低度数的灯具，其亮度以能看清书本字迹为合适。

• Leaked, manmade oil is not the only thing that can cause variations in the brightness of the Sun's reflection off the ocean.

  泄漏的人造石油并不是唯一可以导致海面的日光反射发生亮度变化的事物。