地面脉冲地震震源
impulsive surface seismic source
地震震源机制解
Earthquake focal mechanism solution
气动震源地震剖面仪
gas source seismic profiler
GASSP
中小地震震源机制
Focal Mechanism of Small and Medium Earthquakes
3分向数字地震记录
components digital seismic record
便携式地震记录仪
portable seismic recorder
垂直位移地震记录
vertical displacement seismogram
地震记录等浮电缆
seismic recording streamer