然后对该道集进行速度分析、动校正和叠加，得到偏移地震剖面，即共散射点成像。

Then the trace gather undergoes velocity analysis, normal moveout correction and stack to bring seismic migrated section ( This is called scattering point imaging).

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在四川盆地中部的地震水平叠加时间剖面上，中三叠统及下三叠统顶部广泛发育绕射丘状结构。

The diffraction hilly structures widely develop on the top of Middle Triassic and Lower Triassic in the seismic horizontal stacking time sections in the central part of Sichuan Basin.

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石油地震勘探记录中的瑞雷面波是一种干扰波，在反褶积和叠加前必需首先将面波从炮记录中分离出来，以提高叠加剖面的信噪比。

In petroleum seismic exploration records, Rayleigh waves belong in disturbing waves which should be removed from the records before deconvolution and stacking so as to raise signal-to-noise ratio.

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