传感器部位上的下行波场被正向传播到水底，产生水底处的下行 波场（46）。
The down-going wavefield at the sensor position is forward propagated to the water bottom, resulting in a down-going wavefield at the water bottom (46).
与基于特征法的其它类似方法相比，C - I法给出了下行和上行波场更明确的描述。
In contrast to other similar schemes based on characteristic method, the C-I scheme gives a clear view for down-going and upcoming wave fields.
沿上行波波前或下行波波前进行波场延拓是确保波场全倾角归位仅能采用的两种延拓方法。
The wave-field continuations along up-going wavefront or down -going wavefront are the two methods we can take to ensure the all -dip migration of wave field.
沿上行波波前或下行波波前进行波场延拓是确保波场全倾角归位仅能采用的两种延拓方法。
The wave-field continuations along up-going wavefront or down -going wavefront are the two methods we can take to ensure the all -dip migration of wave field.
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