There are two major factors that influence the correction and accuracy of interval velocity. One is the accuracy of reflection coefficient sequence used in interval velocity conversion;

理论分析和实际经验表明，影响层速度反演正确与否和精度的主要因素有两个：一是用于反演的反射系数序列的精度；

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A very thin and very agile person may, by observing his reflection in a rapid sequence of longitudinal strips, obtain a fairly accurate conception of his looks.

一个非常瘦小灵活的人，从一连串纵的片段的映像里，也许可以对自己的容貌得到一个大致不差的概念。

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