Third factor is the influence of vertical seismic motion.

三是输入竖向地震动。

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Ground motion intensity measure (im) is an important basis for structural seismic design.

地震动强度指标是建筑结构抗震设计的重要依据。

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Ground motion intensity measure (im) is an important basis for structural seismic design.

地震动强度指标是建筑结构抗震设计的重要依据。

youdao