长周期地震动  long-period ground motion

远场长周期地震动  far-field long-period ground motion

763长周期地震仪  long period seismograph

长周期地震波  long-period ground motion; Long-period Seismic Wave

长周期地震反应  long-period seismic response

长周期地震反应分析  long-period seismic response analysis

长周期地震仪  long-period seismograph; long (short)-period seismograph; long period seismograph

地震长周期浪  tidal wave

基岩长周期地震波  long-period bedrock seismic wave

地震动特点  ground motion characteristics

地震动特性  characteristic of ground motion; ground motion characteristics; Ground motion characteristic

地震动特征  Ground motion characteristic

地震动特征周期  Ground motion characteristic period

地震动特征周期分区  ground motion characteristic periods grouping

特殊地震反射体  special seismic reflector

特殊地震资料处理  Special seismic data processing

长短周期地震仪  long (short)-period seismograph

长期地震仪  long period seismograph

长期地震预报  long term prediction