The radiation exposure in Hiroshima and Nagasaki was a short-lived, intense, exposure to relatively high doses of penetrating radiation.

广岛和长崎的核辐射是较高剂量的穿透性辐射，持续时间短、强度大。

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This cascade of absorption and scattering stops harmful radiation from penetrating to body tissues.

这一连串的吸收与散射，阻止了有害辐射穿透至人体的组织。

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On the other hand, when it came to penetrating solids, penetrating solids, the alpha radiation was poor at penetrating solids, whereas the beta radiation was very good at penetrating solids.

另一方面，当研究穿过固体的时候，嗯，穿过固体，会发现阿尔法射线很难穿过固体，然而贝塔射线,很容易穿过固体。

麻省理工公开课 - 固态化学导论课程节选