双语例句原声例句
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他证实了，阿尔法粒子就是氦核。
And there he was able to identify the alpha particle as the helium nucleus.
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我们有一个氦核和一个电子。
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阿尔法粒子是氦核，它们是放射性衰变的产物。
Alpha particles are these helium nuclei, and they are the result of radioactive decay.
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Alpha particles are these helium nuclei, and they are the result of radioactive decay.
阿尔法粒子是氦核，它们是放射性衰变的产物。
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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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So, all that's left is the helium nucleus, two protons, two neutrons.
仅留下氦核，两个质子，两个中子。
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