seismic base shear 基底剪力
seismic base isolation system 基础隔震系统
three-dimensional seismic base isolation 三维基础隔震
seismic design base on performance 抗震性能设计
In this paper, the method of extremum of the product function is used to analyze upper bound seismic base shear force of the existing overpass and the calculation formulas are gotten.
本文利用积函数极值法，从地震作用的角度出发，推导并建立了已建立交桥桥墩的基底剪力的表达式。
Strong reflections from seismic profiles indicate a discontinuity at the base of the gas hydrate zone.
来自地震剖面的强烈反映表明在气体水合物区域的基础之上存在不均匀受力的情况。
And the attenuation studies of seismic wave in the laboratory have provided studying base for the mechanism studies.
而实验室中对地震波衰减的研究为衰减机理提供了研究基础。
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