Green is the color used for night-vision goggles because the human eye is most sensitive to and able to discern the most shades of that color.

绿色是夜视镜所采用的颜色，因为人类的视觉对绿色的不同深浅色调最为敏感，更易于辨识。

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Green is the color used for night-vision goggles because the human eye is most sensitive to and able to discern the most shades of that color.

绿色是夜视镜所采取的色彩，由于人类的视觉对绿色的分歧深淡色调最为敏感，更易于辨识。

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While some of the budget airlines might use brighter, bolder shades, most others go with softened tones.

大多数航空公司选择柔和的色调，但一些廉价航空公司会采用大胆、明亮的色调。

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Nokia has a good eye for hardware colors and the Lumia 620 offers the most shades yet -- seven in total.

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It's a sharp contrast to the drab shades most consumer electronics sported just a few years ago.

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Not everyone loves the way its unpredictable natural grain fails to line up from panel to panel (most noticeable in darker shades), though some of the bold new patterns mitigate that effect.

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