Dynamic damping ratio of frozen soil decreases with increment of frequency or decrement of temperature.
冻土的动阻尼比随频率的增加或温度的降低而减小。
The natural logarithm of this ratio is called the logarithmic decrement.
此比率自然对数称为对数的减量。
The natural logarithm of this ratio is called the logarithmic decrement.
此比率自然对数称为对数的减量。
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