The time history analysis was carried out in two seismic wave input cases, one with both horizontal and vertical wave input and the other with horizontal input only.
分析时采用两种地震波输入形式：一种是同时输入水平地震加速度和竖向地震加速度，另一种是仅输入水平地震加速度。
The key dominant facts of seismic wave input of time history analysis are discussed briefly in this paper, which are shown as reference for civil engineering designers.
本文简要论述了时程分析中地震波输入的一些关键控制因素，为土木工程设计人员提供参考。
The time history of drift motion of mooring buoy in regular wave and wave group is calculated. The relation between drift motion and wave height or difference of frequency is discussed.
计算了规则波和波群中系泊浮筒漂移运动的时间历程，讨论了其运动与波高、频差的关系。
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