brightness
brightness 英 ['braɪtnəs] 美 [ˈbraɪtnɪs]
n. [光][天] 亮度；聪明，活泼；鲜艳；愉快
名词复数:brightnesses
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- n. [光][天] 亮度；聪明，活泼；鲜艳；愉快
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1. It also will measure the brightness of each laser reflection.
它还将测量每一道激光反射的光亮度。
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2. Astronomers describe star brightness in terms of magnitude and luminosity.
天文学家用星等和光度来描述恒星的亮度。
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3. This inference is usually based on what is perceived as formation flying by sets of objects, unnatural—often sudden—motions, the lack of sound, changes in brightness or colour, and strange shapes.
这些推论通常是建立在观察到的多个物体的飞行队列、不寻常——通常是瞬间——的运动、没有声音、亮度和色彩的变化，以及奇怪的形状之上的。
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