That's because the earth's atmosphere shields us from harmful radiation.

这是因为地球的大气层保护我们免受辐射伤害。

In Earth's upper atmosphere, it acts as a barrier to block harmful radiation from the sun.

在地球高层大气中，它阻挡来自太阳的有害辐射，起到屏障的作用。

Problem is, it still emits plenty of harmful radiation, and it will for the next 10,000 years.

麻烦的是，燃料棒仍然会释放出大量有害辐射，并会持续上万年时间。

High up in what is called the stratosphere, the ozone layer keeps harmful ultraviolet radiation from reaching the earth.

在上方的平流层中，臭氧层使得有害的紫外线不能进入地球。

If one of these bursts is directed at Earth, it would deplete our ozone and expose us to harmful cosmic radiation.

如果一场伽马射线爆发刚好对准地球，它会破坏我们的臭氧层并把我们暴露在有害的宇宙辐射下。

The ozone layer protects life on our planet by blocking harmful radiation from the Sun.

臭氧层通过阻挡来自太阳的有害辐射来保护地球上的生命。

The recovery of the ozone layer is expected to reduce the sun's harmful ultraviolet radiation to humans, preventing skin cancer and cataracts.

分析认为，臭氧层的恢复有望减少太阳有害紫外线对人类的辐射，避免因此导致的皮肤癌和白内障等疾病。

It filters out more than 90 percent of the harmful UV radiation coming from the sun.

它过滤掉 90% 以上来自太阳的有害紫外线辐射。

Which is good, because that's what's protecting us from harmful radiation from the Sun right now.

这很好，因为这就是现在保护我们免受来自太阳的有害辐射的原因。

Thankfully, modern LCD TVs don’t emit harmful radiation at all, so you can sit as close as you want.

值得庆幸的是，现代液晶电视根本不会发出有害辐射，因此您可以坐得离自己近一些。

That is an international treaty aimed at reducing chemicals that damage the Earth's ozone, a layer of oxygen that blocks harmful solar radiation.

《蒙特利尔议定书》是一项旨在降低毁坏地球臭氧层的化学物质的国际条约。臭氧层是阻挡有害太阳辐射的一层臭氧。

And remember, though solar filters block most harmful radiation, you still need to take frequent breaks from looking directly at the sun.

请记住，虽然太阳能过滤器可以阻挡大部分有害辐射，但您仍然需要经常休息，不要直视太阳。

And even if the magnetic field does continue to weaken, we still have the atmosphere to protect us from some harmful radiation.

即使磁场确实继续减弱，我们仍然有大气保护我们免受一些有害辐射。

Matrix producers pump out the extracellular goo, swimmers assemble flagella and are free to move about or migrate, and spore-formers produce dormant, tough endospores that survive starvation, temperature extremes, and harmful radiation.

基质制造者能够分泌细胞外粘性物质，鞭毛可以自由活动和迁移，芽孢菌生产休眠、坚硬的孢子内壁，孢子内壁能够在饥饿、极端温度、以及有害射线下生存。

Ozone, or O3, is a molecule that’s being created and broken down all the time in the stratosphere, and it absorbs a lot of the Sun’s harmful UV-B radiation.

臭氧或 O3 是一种在平流层中不断产生和分解的分子，它吸收了大量太阳有害的 UV-B 辐射。