1) seismic duration
地震持时
2) Ground motion duration
地震动持时
1.
Employing the displacement response spectra of single-degree-of freedom systems with different levels of damping ratios, the present study investigates the effects of the effective ground motion duration on damping reduction factor.
该文采用简谐正弦波和25条集集地震记录,基于单自由度体系不同阻尼比水平的位移反应谱研究了有效地震动持时对阻尼折减系数影响。
3) duration of earthquake
地震持续时间
4) duration of strong ground motion
强震持时
1.
302 Northridge in USA and 339 ChiChi in Taiwan earthquake ground motion records are classified according to soil condition and duration of strong ground motion.
按场地类别和强震持时将水平向302条美国Northridge地震记录和339条台湾ChiChi地震记录的峰值进行规一化处理,分别采用双线型、半退化三线型和退化三线型3种恢复力模型,对单自由度(SDOF)体系进行弹塑性时程分析,研究结构动力特性和地震动参数对平均滞回耗能谱的影响。
5) time-lapse seismic
时移地震
1.
Study and application of time-lapse seismic monitoring for the thermal recovery of heavy oil reservoir;
稠油热采时移地震监测研究与应用
2.
Analysis on genesis types of time-lapse seismic differential waveform in thin layers;
薄层时移地震差异波形成因类型分析
3.
Analysis of the current status of time-lapse seismic technology;
时移地震技术及其应用现状分析
6) seismic time difference
地震时差
补充资料：持时
1.报时。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条