The vibration of each case from far vibration wave had a blurry border, presenting a likely continuous seism wave.

远处振动波的各振动元素界限不清，更像一段连续地震。

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Secondly, the transmission rules and characteristics of blasting seism wave are analyzed in the paper. The methods of analyzing and predicting blasting vibration are introduced in this paper too.

其次，在分析地震波的特征和传播规律的基础上，介绍了爆破地震振动分析与预测的方法；

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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。

youdao

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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