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Cholecalciferol is produced by irradiation of 7-dehydrocholesterol with ultraviolet light either from the sun or from an artificial source.

胆钙化醇是7?脱氢胆固醇工来源的紫外线照射而产生的。

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TED演讲(视频版)双语精选

I think you all know what ultraviolet light is.

我想,你们都知道紫外是什麽。

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Beyond violet is ultraviolet light, or UV.

在紫光之外是紫外光(UV)。

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机智

Unlike humans, birds can see ultraviolet light.

与人类不同,鸟类可以看到紫外

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Specifically, high-energy ultraviolet light, like the UV rays in sunlight.

更准确地说,是高能紫外,比如说日光中的紫外

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少儿科之歌

They're formed when ultraviolet light interacts with ethane you see.

它们是由于紫外对乙烷的作用形成的,你看。

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机智

They see everything in slow-mo, plus they can see ultraviolet light.

它们以慢镜头观察一切,而它们还能看到紫外

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VOA速英语_欧洲

It is disinfecting using a form of ultraviolet light called UVC.

它使用一种叫做UVC的紫外进行消毒。

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PBS趣味科普

Cells sensitive mainly to green light and cells sensitive mainly to ultraviolet light.

主要对绿光敏感的细胞,主要对紫外敏感的细胞。

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当月 CNN 10 学英语 2020年8月合集

We have an -- The robot uses waves of ultraviolet light called UVC.

我们有——这种机器人,使用的是叫做UVC的紫外

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VOA速英语_欧洲

The robot must operate without a human to deliver its waves of ultraviolet light.

该机器人必须在没有人的情况下操作,提供紫外

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VOA Special 2022年3月合集

The system uses a clear liquid that can only be seen under ultraviolet light.

该系统使用了一种只有在紫外下才能看到的透明液体。

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Crash Course 天文篇

Gas molecules emitted by the comet get ionized by the Sun's ultraviolet light.

彗星释放的气体分子被太阳的紫外电离。

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野性北极

The reindeer is also one of the only mammals on the planet that can see ultraviolet light.

驯鹿还是为数不多的能看到紫外的哺乳动物之一。

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Crash Course 天文篇

So in this lingo, ultraviolet light is bluer than blue, and X-rays are bluer than ultraviolet.

所以按这个术语的说法,紫外就比蓝色更蓝,X射比紫外更蓝。

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Metals like tin and aluminum are much better at reflecting ultraviolet light, which is why they're used in roofing.

而像锡和铝这样的金属能更好的反射紫外,所以它们用于屋顶。

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Crash Course 天文篇

These digital cameras can also be designed to detect ultraviolet light, infrared, and more.

数码相机还可以用来探测紫外、红外等。

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VOA慢速英语_美国

The water reuse treatment process usually involves disinfecting wastewater with ozone gas or ultraviolet light to remove viruses and bacteria.

水再利用处理过程通包括用臭氧气体或紫外对废水进行消毒,以去除病毒和细菌。

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当月 CNN 10 学英语 2020年8月合集

Omar Chappuis's Dubai based company has used ultraviolet light to purify air and sanitize drinking water for nearly five years.

奥马尔·查普伊位于迪拜的公司使用紫外净化空气、清洁饮用水已经将近五年了。

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Scishow 精选系列

Sunburn and tans are both caused by the sun's ultraviolet light interacting with and damaging your skin in different ways.

晒伤和棕色皮肤都是由多种紫外造成的,并从不同方面损坏你的皮肤。

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科学报

It matches an earlier measurement made using ultraviolet light.

它与早期使用紫外进行的测量相符。

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