采用部分近偏移距道叠加，避免出现远道动校正拉伸畸变；
The stacking of some near-offset traces avoids NMO correction stretching distortion on far traces;
常规动校正使波形发生拉伸畸变，尤其是浅层更为严重。
The stretch distortion often present itself in wave form when conventional dynamic correction is used.
常规动校正使波形发生拉伸畸变，尤其是浅层更为严重。
The stretch distortion often present itself in wave form when conventional dynamic correction is used.
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