In order to take into account the distributed massalong the stories of structure, equation of motion is given in the local coordinates of the story.
考虑层间结构分布质量及楼层处集中质量，在层局部坐标中建立运动微分方程。
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It's also discovery that there is displacement discrepancy in the slide massalong the slip surface, which sets new theoretical base for ground surface deformation analysis and slope failure process.
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