This paper presents a static correction method by using the first - arrival times in raw seismic data 本文提出一个用折射波初至时间计算静校正量的新方法。
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Aim to improve the precision in concrete thickness measurement by judging the first - arriving - time in reflecting waves accurately 摘要目的确定超声反射测厚中反射波初至时间,提高反射法测量精度。