例句與造句

1. For example, numerical solutions of the SBEs have demonstrated that the dynamical reduction of the band gap which originates from the Coulomb interaction among the photoexcited electrons and holes is able to generate a photon echo even for resonant excitation of a single discrete exciton resonance with a pulse of sufficient intensity.
2. It's difficult to find dynamical reduction in a sentence. 用dynamical reduction造句挺難的