以下为句子列表：
英文: Based on frequency-spectrum-transformation, this algorithm first changes acceleration spectrum into displacement spectrum, then calculates its amplitude, angular frequency and initial angle related to every displacement spectrum, finally sums up all the d
中文: 该方法采用频谱转换法，首先将加速度谱转换成位移谱，再计算出位移谱中每个频率分量对应的幅值、圆频率和初相角，最后对各位移分量进行叠加得到振动位移的时间历程。
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