太阳辐射可以轻易地通过高空薄云层，就像通过空气一样。

High thin clouds are very transparent to solar radiation, like clear air.

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来自外太空的各种宇宙射线通过空气进入大气层，但来自太阳的大量辐射却被屏蔽了。

Cosmic rays of various kinds come through the air from outer space, but enormous quantities of radiation from the sun are screened off.

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辐射会通过空气或者海洋扩散到全世界吗？

Will the radiation spread across the globe via air or sea?

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