富氦核 [天物] helium-rich core
氦核战机 Helion
氦原子核 alpha particle
氦汞直接核抽运激光器 helium-mercury direct nuclear pumped laser ; helium-mercury direct nuclear laser
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.
我们有一个氦核和一个电子。
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.
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。
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。
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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