热也使我们的环境变得适宜生存，而且一些紫外线会穿透大气层。
Heat, too, makes our environments tolerable and some ultraviolet rays penetrate the atmosphere.
他们的预测是基于积聚在地壳的罕见同位素的水平，轻微的太阳风使宇宙射线穿透地球的大气层。
Their prediction is based on levels of rare isotopes that accumulate in the Earth's crust when weak solar winds allow cosmic rays to penetrate the Earth's atmosphere.
一开始会介绍几个今天还在使用的地面望远镜，这些望远镜体型巨大，因为他们必须能够穿透地球的大气层。
We'll begin with some of the greatest ground-based telescope systems in use today. Because they have to be able to see through the Earth's atmosphere, these telescopes are truly massive.
这使得更多的太阳辐射穿透地球的大气层，从而促进气候强迫作用(更短波辐射到达地球，升高陆地和海洋表面气温)。
This allows more solar radiation to penetrate the earth's atmosphere, which promotes a climate forcing effect (more short wave radiation reaches the earth, warming land and sea-surface temps).
他们还认为，本月早些时候所发现神秘闪光是一颗流星，它的爆炸不足以穿透木星大气层的深度。
They also believe the mysterious flash of light spotted earlier this month was a meteor that did not penetrate deep enough into Jupiter's atmosphere for it to explode.
UVC的波长最短，不能穿透地球大气层，所以不会对人产生影响。
UVC, the shortest waves, aren't a problem because they don't make it through the Earth's atmosphere.
他们的预测是基于积聚在地壳的罕见同位素的水平，轻微的太阳风使宇宙射线穿透地球的大气层。
Their prediction is based on levels of rare isotopes that accumulate in the Earth"s crust when weak solar winds allow cosmic rays to penetrate the Earth"s atmosphere.
他们提出的新方式起始于一种观测—当某些特定的电磁辐射穿越大气层时，下雨会增加穿透的难度。
Their scheme starts from the observation that rain can make it harder for certain sorts of electromagnetic radiation to travel through the atmosphere.
因为无线电频率被认为可以很好地穿透地球大气层。
This is because frequencies from radios have been thought to penetrate through the Earth's atmosphere pretty well.
因为无线电频率被认为可以很好地穿透地球大气层。
This is because frequencies from radios have been thought to penetrate through the Earth's atmosphere pretty well.
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