Dephasing processes of coherent Frenkel excitons were studied using accumulated photon echo with douDephasing processes of coherent Frenkel excitons were studied using accumulated photon echo with dou
用双调制外差检测的累积光子回波技术研究了相干弗兰克尔（Frenkel）激子失相过程。
Political attacks work only if they find an echo with voters.Political attacks work only if they find an echo with voters.
政治攻击只有在选民中引起共鸣才会有作用。
Political attacks work only if they find an echo with voters.Political attacks work only if they find an echo with voters.
