fundamental period frequency
fundamental period frequency
基周期频率
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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The results shows that the fundamental frequency of the model which takes the combined activate into consideration reduced evidently, and the fundamental period prolonged evidently.
研究结果表明，考虑地基土、砂砾石垫层、上部结构共同作用时，结构的基本频率明显减小，相应的基本周期明显延长；
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