[名词解释] 中子扩散 neutron diffusion
[名词解释] 中子寿命 neutron lifetime
[名词解释] 中子数密度 neutron (number) density
[名词解释] 中子流密度neutron current density
[名词解释] 连锁群(linkage group)
[名词解释] 群截面 group cross section
[名词解释] 能值(Energy)
[名词解释] 细菌生理群 physiological group of bacteria
[名词解释] 群分出截面 group removal cross section
[名词解释] 单群理论 one-group theory