In such conditions a shear head wave is generated, so that standard techniques based on monopole transducers can be used to measure formation shear velocity.

在这种情况下会产生横波首波，因此可以使用基于单极子传感器的标准技术测量地层横波。

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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。

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First, we analyze the head wave PN, it shows that it's good in linearity relation, and the value of PN velocity counted out is same to the crust model using in the list of pass time of HuaNan seism.

首先对其首波pn进行分析，结果表明其线性关系较好，计算出的速度值与华南地区近震走时表中所用的地壳模型中的速度值一致。

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But when we're thinking about actual wave behavior of electrons, it's just important to keep in the back of our head that some areas have positive amplitude and some have negative.

电子的波动行为时,我们，要记住,某些地方是正的,某些地方是负的,当我们讲到。

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