为此，我们引进了海底电缆初至波定位技术。
First-break positioning technique for ocean bottom cable is then introduced to remove above deficiencies.
为此，本文提出了一种新的基于图像边缘检测技术的初至波自动拾取方法。
For that reason, the paper presented a new method of automatic first breaks pick-up based on the technique of image edge detection.
采用时间项技术的三维初至折射波静校正方法在求解大型方程组时由于方程组的病态性质将遇到困难。
The 3-d first break refraction static corrections adopted time-term technique has difficulty in solving large-scale set of equations because of ill-conditioned property of set of equations.
根据初至波特点，基于数字图像处理技术，提出了应用边缘检测和边缘追踪技术进行初至波自动拾取的方法。该方法的实现过程为：①对地震记录做单道归一化处理；
The digital image processing such as edge detection and boundary tracing to pick up the first break time is discussed in this paper, which based on the specialty of first break time.
根据初至波特点，基于数字图像处理技术，提出了应用边缘检测和边缘追踪技术进行初至波自动拾取的方法。该方法的实现过程为：①对地震记录做单道归一化处理；
The digital image processing such as edge detection and boundary tracing to pick up the first break time is discussed in this paper, which based on the specialty of first break time.
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