When the frequency is low, the recorded acoustic amplitude value is high. So the evaluation result is reliable.
发现频率低时，由于记录到的声幅值较高，评价结果可靠。
Relationship between the evaluation parameters of sonic amplitude log and the evaluation parameters of CBL is discussed.
讨论了声幅测井与CBL方法评价指标的关系。
Based on the mechanism of input and damping, it is suggested that the vibration amplitude and threshold be taken as a criterion for evaluation vibration strength and anti-vibration ability.
在讨论输入和阻尼机理的基础上，提出了用振幅大小和起振门槛值作为衡量摆振大小和抗御摆振能力的衡量指标。
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