finite-difference migration 有限差分偏移 ; 有限差分法偏移
Fourier finite difference migration operator Fourier有限差分偏移算子
3D finite difference migration 三维有限差分偏移
fourier finite-difference migration 傅里叶有限差分偏移
finite difference time migration 有限差分时间偏移
finite-difference depth migration 有限差分深度偏移
Finite Difference Wave Equation Migration 有限差分波动方程偏移
According to geologic model of unsteady groundwater flow in heterogeneous medium and adopting the finite difference solution, the direction and strength of oil gas migration can be quantified.
根据非均匀各向异性地层的非稳定的地下水流动模型，采用有限差分法求解，可以定量判断油气运移的方向及强度。
The finite difference depth migration equation in space-frequency domain can be derived when the radical expression is approximated by continued fraction.
采用连分式近似，可以得到空间频率域的有限差分深度偏移方程。
The key to all-dip wave field migration using finite-difference method lies in the continuation direction of wave field.
用有限差分法进行波场全倾角归位的关键在于波场的延拓方向。
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