level spacing 能级间隔 ; 能级间距

energy level spacing 能级间距 ; 能级间隔

neutron level spacing 中子能级间距 ; 中子能阶间隔

nuclear level spacing 核能级间距

resonance level spacing 共振能级间距

spacing nuclear-level 核能阶间距

resonance-level spacing 谐振能级间距

nuclear-level spacing 核能级间距

average level spacing 平均能级间距