As the most physical of the shot-profile wave equation pre-stack depth migration involving huge extrapolation calculation, the calculation is extremely time-consuming and less efficient.

作为最具物理性的共炮点道集的波动方程叠前深度偏移，涉及庞大的波场外推计算量，计算极其耗时，效率较低。

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These results quantitatively expound the effect of the nonlinear up-down asymmetry of wave profile on the statistical properties of the wave field.

所得结果定量地阐明了波剖面的非线性上下不对称性对波动场统计特征的影响。

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Let's now examine the simplest wave from where the profile is a sine or cosine curve.

现在让我们来考察最简单的波形，它的剖面图是正弦或余弦曲线。

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In 2007, celebrity power couple Brad Pitt and Angelina Jolie purchased this 1800s mansion in New Orleans, sparking a wave of high-profile home buying in the city.

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