将多重网格技术与变形玻恩迭代法相结合，对轴对称二维非均匀介质分布进行了反演。
The profile of a two-dimensional axisymmetric inhomogeneous medium is reconstructed by using the distorted Born iterative method and multi-grid technique.
在反演过程中，采用多重网格技术将待反演区域的离散网格从粗网格逐渐推演到细网格。
The discretization grid size of the inhomogeneous object domain was reduced gradually by using the multi-grid technique in the inversion procedure.
采用推进阵面法生成三角形非结构网格，用多重网格技术求解泊桑方程以取得结构背景网格。
Computational unstructured grid is generated by advancing front method, and the structured background gird is obtained by using multigrid technique to solve the Poisson equation.
电势的迭代计算采用多重网格加速收敛，用隐式残值光滑技术改善收敛速度以及时间推进过程的稳定性。
Other steps including multigrid techniques and residue smoothing were taken to accelerate the convergence rate and improve the calculation stability.
多重网格法是一种套迭代技术，前一层上的迭代解作为新一层上迭代的初始解。
Multigrid method is a nested iteration, wherein the computed solution on the previous level serves as starting point for the iteration on the new level.
针对非结构化网格上迭代收敛速度会逐渐减慢的特点，引入了多重网格求解技术，采用了其中效率较高的代数多重网格方法对离散方程进行求解。
To overcome the reduced convergence speed of iteration method, multigrid method is introduced and algebraic multigrid is adopted to solve discretized equations because of its higher effectiveness.
针对非结构化网格上迭代收敛速度会逐渐减慢的特点，引入了多重网格求解技术，采用了其中效率较高的代数多重网格方法对离散方程进行求解。
To overcome the reduced convergence speed of iteration method, multigrid method is introduced and algebraic multigrid is adopted to solve discretized equations because of its higher effectiveness.
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