河南南阳油田地质录井公司
nanyang oilfield geologging company
河南南召
ore processing technology
河南南召水洞岭
henan nanzhao shuidonglin
黄河河南段
the Yellow River in Henan section
黄河河南悬河段
elevated Yellow River section in Henan
大地震震级速报实用化讨论
Quick report for great earthquake magnitude
地面脉冲地震震源
impulsive surface seismic source
地震震害
earthquake damage
Earthquake Damage to Building
earthquake disaster
seismic hazards