Particles,Elementary
《英文msh詞典》Particles,Elementary
[入口詞] Particles,Elementary
[主題詞] Elementary Particles
[英文釋義] Individual components of atoms,usually subatomic; subnuclear particles are usually detected only when the atomic nucleus decays and then only transiently,as most of them are unstable,often yielding pure energy without substance,i.e.,radiation.