But under UV light, these strips really shine.

但是在紫外线下这些细线确实会发光。

But before the UV lights turn on, safety measures are taken.

但是在打开紫外线灯之前，要采取安全措施。

In several places, there are large holes that let in pure UV light.

在几个地方，甚至出现了臭氧漏洞，导致太阳直射。

Certain pigments glow under UV light, exposing traces that would have been otherwise invisible.

某些色素在紫外线下会发光，暴露出原本看不见的痕迹。

When we lay in the sun, our skin absorbs two types of UV light.

当我们在阳光下躺在的时候，我们的皮肤会吸收两种紫外线。

Over 100 years ago, UV light was first used to disinfect drinking water in Masse, France.

100多年前，紫外线在法国马赛首次被用于净化饮用水。

And nobody there. And there's actually insects that come in because we run a UV light.

他们都不在这里。实际上还有昆虫进来，因为有紫外线灯。

All forms of UV light are known to be harmful to the skin and to the eyes.

众所周知，所有形式的紫外线都对皮肤和眼睛有害。

It's dark green because they have this particular pigment protecting them from the access of UV light.

这是深绿色的, 因为它们有这个特殊的色素保护自己不受紫外线的侵害。

But Molina and Rowland showed that in the stratosphere, they're broken apart by UV light, releasing chlorine atoms.

但莫利纳和罗兰表明了在平流层里，它们被紫外线分解，释放出氯原子。

Your body makes a dark pigmented molecule called melanin that absorbs UV light to protect your skin from damage.

你的身体会产生黑色素来保护你的皮肤。

One the coronavirus hit, he and his team looked at ways to deploy UV light to fight the virus.

当病毒来袭时，查普伊和他的团队研究了利用紫外线来对抗病毒的办法。

This was a problem because although UV light can damage skin, it also has an important parallel benefit.

那么问题来了，紫外线虽然伤害皮肤，但是它有一个相当重要的好处。

Right. And finally, there's air disinfection — for example, using UV light to " kill" or inactivate a virus in the air.

是的。最后一个重点是“空气消毒”——比如使用紫外线灯“杀死”空气中的病毒或使其失去活性。

When scientists photographed this archer's legs under UV light, they saw this: a dizzying array of geometric patterns and saturated colors.

当科学家在紫外线下拍摄这个弓箭手的腿时，他们看到了这个：令人眼花缭乱的几何图案和饱和的颜色。

After printing, some bioinks will stiffen immediately; others need UV light or an additional chemical or physical process to stabilize the structure.

打印完成后，有些生物墨水会立即变硬；有些则需要紫外线，或额外的化学或物理加工来稳定结构。

And there is actually insects that come in because we run a UV light and then they can practice on their own.

事实上，昆虫也会进来，因为我们使用紫外线灯，它们就可以自己练习了。

Most bats have decent vision and some species like fruit bats actually have particularly good vision and can even see UV light.

大多数蝙蝠的视力都不错，而像果蝠这样的物种其实视力特别好，甚至可以看到紫外线。

Finally, the tech turns the UV light back on, and sees how much longer the participants last before turning red again.

最后，技术人员再次打开紫外线灯，观察参与者的皮肤经过多久会再次变红。

Under the thick coat of fur, the skin of the polar bear is actually black, which helps them to absorb the UV light.

在厚厚的皮毛之下，北极熊的皮肤实际上是黑色的，这有助于它们吸收紫外线。