Although the light from the sun looks white, it is actually a combination of many colors, including blue light.

虽然太阳光看起来是白色的，但实际上它是多种颜色的光线的组合，其中就包含有蓝光。

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A combination of a strong directional light and a weaker ambient light gives a natural-looking appearance to your scene.

由强方向性光源和较弱的环境光源组合在一起可以为你的场景提供一种自然的感观。

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Instead, many lenses must be used in combination, where each lens does its part to have the light end up where it is supposed to.

相反，许多镜头必须结合使用，其中每个镜头分别负责在截止位置拦截部分光线。

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The body clock is reset subtlety every day by a combination of dawn light and evening light.

BBC: 'Sleepyhead gene' discovered

Generally LED bulbs use either a combination red, green and blue LEDs to create white light, or they use a phosphor coating (more common) in combination with a blue LED.

ENGADGET

The idea that you could silence or activate neurons with light is a powerful one in combination with the tools that Boyden and Forest are working on together.

CNN: Top brain scientist is 'philosopher at heart'