本文研究用有限元法求标量波动方程的数值解。
This paper mainly describes how to get the numerical solution of the scalar wave equation by finite element method.
本文综述了结构声传递的四种数值计算方法：统计能量分析、有限元法、阻抗分析法、波动分析法。
Four kinds of numerical computing methods for structure_borne propagation are summarized: Statistical Energy Analysis, Finite Element method.
在使用有限元法求解波动方程偏移过程中，由于未知量数目巨大，需要花费大量的计算机存储空间和计算时间。
In wave equation migration using finite element method, a great deal of computer's internal storage and computer time are used because of too many unknowns involved.
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