A sodium chloride crystal is transparent to visible light.

氯化钠晶体对可见光是透明。

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When you want to know if something is transparent to visible light or not, here is the mystery material and here is visible light.

当你想知道某物对可见光是否透明时，这里是神秘物质，这里是可见光。

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Transparent to visible light.

对可见光透明。

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These are photodetectors, band gap two electron volts, respond to visible light.

这是光电探测器，能带隙为2电子伏，当它反应于可见光。

麻省理工公开课 - 固态化学导论课程节选

When you want to know if something is transparent to visible light or not, here is the mystery material and here is visible light.

而我们知道,物体是否对可见光透明，这里是神秘的材料，这里是可见光。

麻省理工公开课 - 固态化学导论课程节选

So, if you use a black lamp or something and you excite something up to a higher energy level and then it relaxes back down to its lower energy state, it's going to emit a new wavelength of light, which is going to be visible to you.

如果你用一个紫外灯或别的,东西把某种分子激发到,更高的能级，然后它会掉回,到低能级，它就会释放,一个新的波长的光,这个光是可见的。

麻省理工公开课 - 化学原理课程节选

For generations, microbiologists had known that single-celled bacteria, fungi and algae survive thanks to proteins that respond to visible light.

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The near-infrared photoactive polymer absorbs more near-infrared light but is less sensitive to visible light, balancing solar cell performance and transparency in the visible wavelength region.

ENGADGET: UCLA creates transparent solar cell, dreams of current generating windows

There is some waste heat caused by inefficiencies within the LED, however, the net result is a big gain in the percentage of electricity converted to visible light.

FORBES: LED Light Bulbs Mature At Last