1)neutron population fluctuation,中子数的涨落2)neutron fluctuation,中子涨落3)particle number fluctuation,粒子数涨落4)photon number fluctuation,光子数涨落5)neutron density fluctuation,中子密度涨落6)fluctuation of particle number,粒子数相对涨落
用法和例句
The phase, fluctuation and the photon number fluctuation are studied.