Using the perturbative method the asymptotic solution of the corresponding model is obtained.
利用摄动方法求出了相应模式的渐近解。
The perturbative methods for positron-atom scattering omitted Ps formation and ionization channels.
微扰的方法在正电子与原子的三射中忽略了电子偶素形成和电离通道；
Chapter 1 begin with an introduction and overview of the computations of perturbative scattering amplitudes.
第一章是关于微扰散射振幅计算的导论和概述。
应用推荐