旧金山是这次火炬传递活动中在美国的唯一一站，奥运火炬23个城市的全球传递活动将在这里结束它的第一周行程。
San Francisco is the only U. S. stop for the torch relay, where it wraps up the first week of a 23-city international tour.
在此基础上，对该换流站阀厅结构体系在不同峰值、不同场地和不同方向地震波作用下，分别进行了动力时程分析。
On this basis, dynamic time history analysis was carried out in different peaks, different areas and different directions of seismic waves for this inverter station valve hall.
在此基础上，对该换流站阀厅结构体系在不同峰值、不同场地和不同方向地震波作用下，分别进行了动力时程分析。
On this basis, dynamic time history analysis was carried out in different peaks, different areas and different directions of seismic waves for this inverter station valve hall.
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