The boundary between the two areas acts as a wall, capable of reflecting a guided EM wave on the graphene much like one would in a three dimensional space.
两个区域的边界就像是一堵墙，能反射被引导的电磁波； 这和三维空间中的墙是类似的。
In the numerical simulation of the wave equation, to develop an absorbing boundary condition in the finite domain is a very important problem.
在地震波传播的数值模拟中，在有限区域建立吸收边界条件是一个很重要的问题。
We consider the problem of constructing artificial boundary conditions for the wave equation.
讨论了求解无限区域内波动方程的人工边界条件问题。
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