H-alpha emission 发出一种略带红色的光
alpha-particle emission 阿伐粒子发射
emission alpha-particle 阿伐粒子发射
alpha a emission 粒子发射
We have shown that it is possible to create a radioactivity characterized by the emission of positive or negative electrons in boron and magnesium by bombardment with alpha rays.
我们已经展示了人工放射现象的可能性，这种放射现象的特征是用以射线轰击用咄硼和镁中的正电子或负电子。
Aluminium can be transformed, by the capture of an alpha particle and the emission of a proton, into a stable silicon atom.
铝可以通过俘获。粒子、排出质子而被蜕变成一种稳定的硅原子。
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