long-period seismograph 长周期地震仪
ultra long period seismograph 超长周期地震仪
middle-long period seismograph 中长周期地震仪
Medium-long period seismograph 中长周期地震仪
3-component long-period seismograph 三向长周期地震仪
observation with the long-period seismograph 长周期地震观测
long period vertical seismograph 长周期垂直地震仪
应用推荐