描述了粘弹性介质波的传播过程和特点，输出了波场快照和地震记录-Describes the propagation process and characteristics of viscoelastic medium wave, the output of the wave field snapshot and seismic record

起伏地表下的地震波场数值模拟，有限差分法，一层介质，人工吸收边界条件，求取时间波场快照-Numerical simulation of seismic wave fields, finite difference method, a layer of dielectric undulating surface under artificial absorbing boundary conditions, the time to strike a snapshot of the wave fiel