seismic ray震线,地震波射线seismicadj.地震的seismic liquefaction area地震液化区seismic imaging technique地震映像Seismic Respones Analysis桥梁地震反应seismic-wave dispersion地震波频散seismic velocity spectrum地震速度谱seismic design in bridges桥梁抗震设计seismic overload response地震动seismic ground hazard map地震地面危害分布seismic physical modeling地震物理模拟seismic reflection layers地震反射层