原声例句
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So, what we've got here is a source of alpha particles.
我们已经有了一个阿尔法粒子源。
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And there he was able to identify the alpha particle as the helium nucleus.
他证实了,阿尔法粒子就是氦核。
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But it's really interesting the studies that he did do with radium bromide, and he was studying the alpha particles.
但他用溴化镭,做的研究十分有意思，他研究的是alpha粒子。
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