The mean concentration equation of adsorbing solute transport in heterogeneous unsaturated soil was studied based on the spectrum analysis of the spacial random field.
本文应用随机场的谱分析方法，研究了吸附性溶质在非饱和、非均匀土体中运动时平均浓度所遵循的基本方程。
The pseudo-spectrum method uses Fourier transform and finite difference to solve wave equation. It is one of the important methods used to simulate the seismic wave field.
伪谱法利用傅立叶变换和有限差分求解波动方程，是三维波场正演模拟的重要方法之一。
应用推荐