... second mate 二副 second mode of vibration 二谐振动形式 second moment of area about neutral axis 中性轴的面二次矩 ...
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The results show that the vibration characteristics of the tower in two horizontal directions are slightly distinct, and the damping ratio of the first mode is greater than that of the second mode.
本文分析结果表明，在两水平方向上木塔的振动特性存在些微差异，第一振型阻尼比较第二振型阻尼比大。
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