地面扰动称为地滚波，它可能包含瑞雷波和其它纵、横形式的波动。
The surface disturbance is termed ground roll and may include Rayleigh and other vertical and horizontal modes of propagation.
叠加时切除一些地震道或地震道的某些数据，以消除它们在叠加中的作用，使空气波、地滚波或其它先期达到的噪声最小。
To remove the contribution of selected seismic traces in a stack to minimize air waves, ground roll and other early-arriving noise.
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