So, regardless of the type of wave that we're talking about, there's some common definitions that we want to make sure that we're all able to use, and the first is amplitude.
所以，不管我们讨论的，是哪种波，它们都有一些我们，能用到的共同的定义，其中第一个就是幅值。
The greater the amplitude change of head wave of transverse velocity is, the severer the damage is, the later the arriving time of the first wave hollow and the longer the damaged element will be.
当脉冲作用点在受损单元的起始位置时，脉冲作用点横向速度波首波波幅变化越大，损伤越大，脉冲作用点横向速度波的第一个波谷到达时间越晚，损伤单元越长。
The strong influence of the degree, location and length of damage on the amplitude and the delaying time of the first wave are analyzed.
分析了各种损伤度，损伤位置，损伤区域大小对波幅，首波延时时间等的影响。
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