The most damaging radiation are gamma rays and x-rays; energetic alpha rays (streams of helium nuclei) and beta rays (electrons) can also damage cells.

最具破坏力的辐射是伽马射线和X射线；能量强大的阿尔法射线（氦核能量流）和贝塔射线（电子流）也可以破坏细胞组织。

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The radiation data involved detecting low levels of gamma radiation and suspected alpha/beta particulates in air.

辐射数据包括探测低水平的微克辐射和可疑的alpha/beta微粒。

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Beta radiation consist of small particles (electrons) with an incredible speed, Alpha radiation consists of big particles (two protons, two neutrons altogether), also with incredible speed.

贝塔是高速冲击的微小粒子(电子)，阿尔法辐射是高速冲击的大粒子(含有两个质子和两个中子)。

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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。

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About 10 to 15 years later, another physicist, Ernest Rutherford, actually put this plum pudding model to test, Ernest Rutherford and he did it through studies that he'd been doing on radiation that was emitting something called alpha particles.

因此我们要，在上面再做改进,大概过了10到15年，另外一个物理学家,用实验来检测这个李子布丁模型,他一直从事alpha粒子辐射研究。

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The uranium emits primarily alpha radiation, easily stopped by our skin.

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The alpha radiation dislodges the electrons that hold DNA together.

BBC: Radon

It emits alpha radiation.

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