Local artificial boundary of seismic analysis is widely used in time-domain finite element method for its good feasibility and high numerical stability.
地震分析中的局部人工边界由于具有易于实现、稳定性较好的特点，目前在时域有限元法中得到广泛应用。
The time domain finite difference and the finite element method are more convenient.
有限差分法和有限单元法在时间域里更为方便。
The spline finite element procedure is used in space domain and the state space technique in time domain respectively.
对空间域采用混合样条元法，对时间域采用现代控制论中的状态空间法。
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