短語(yǔ)詞組短語(yǔ)nonlinear finite difference equation 非線性有限差分方程finite difference equation model 有限差分公式模型finite difference equation mode 有限差分公式模型coarse mesh finite difference equation 粗網(wǎng)有限差分方程Finite Difference Wave Equation Migration 有限差分波動(dòng)方程偏移wave equation finite difference method 波動(dòng)方程差分解法 返回 finite difference equation