ā ěr fǎ lì zǐ
alpha particle (helium nucleus)
阿
ā
abbr. for country names that begin with 阿[a1]: Algeria 阿爾及利亞|阿尔及利亚[A1 er3 ji2 li4 ya4], Afghanistan 阿富汗[A1 fu4 han4] etc
尔
ěr
thus
法
fǎ
old variant of 法[fa3]
粒
lì
grain; granule; pellet; particle
子
zǐ
son
