Cov Khoom Seismic thiab Seismograph

Txais tos rau kev lag luam wholesale pheej yig seismic cov cuab yeej thiab cov seismograph rau muag ntawm no los ntawm cov kws tshaj lij seismic thiab seismograph tuam ntxhab thiab cov muag khoom hauv Suav teb. Txog kev sib tham ntawm tus nqi, tiv tauj peb.