1. 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。
2. It is comprised of tiny grains(each smaller than a dust particle)of zirconium oxide(40 percent), magnesium aluminate spinel(30 percent), and alpha alumina(30 percent). 
   此材料是由细小氧化锆(４０％)，镁铝尖晶石(３０％)和α－氧化铝(３０％)颗粒(每个比灰尘颗粒还要小)组成。
3. The nature of the nuclear transformation could be firmly established: the aluminium atom, for example, captures the alpha particle and is transformed, after expelling the proton, into an atom of silicon. 
   核蜕变的性质因此得到确立。例如，铝原子俘获。粒子，并在排出质子后蜕变成硅原子。
4. Any of a class of particles, such as the photon, pion, or alpha particle, that have zero or integral spin and obey statistical rules permitting any number of identical particles to occupy the same quantum state. 
   玻色子具有零或整数自旋状态，并且任意数目的相同粒子占据相同量子状态的统计学规则的粒子，如光子、π介子或α粒子
5. charged particle activation analysis 
   带电粒子活化分析

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