光阴似水，流年暗度。

Time like water, fleeting darkness.

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对比度—一个图片上亮到暗区域的变化范围。

CONTRAST - the range of difference in the light to dark areas of an image.

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暗度是温度与波长的函数。

The opacity is a function of temperature and wavelength .

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暗度是温度与波长的函数。

The opacity is a function of temperature and wavelength.

youdao

暗度是温度与波长的函数。

The opacity is a function of temperature and wavelength.

youdao