光在全反射时，能流垂直通过界面的时间平均值等于零，但有一很快衰减的光波透过界面，称为衰减波。
衰减波
双语例句原声例句
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它满足麦克斯韦方程标量形式和基尔霍夫边界条件，包括传播波和衰减波。
It satisfies the Maxwell's scalar equations and Kirchhoff's boundary conditions and includes propagating waves and evanescent waves.
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以波的电矢量为例，具体讨论了衰减电磁波的振幅、波长、位相以及衰减波的衰减长度。
For the electric vector of electromagnetic wave. we discussed its amplitude, wavelength, phase, and attenuation length.
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由于热波是一种高衰减波，且波长短，现已成功地实现了对材料亚表面结构的分层成像。
Laminated imaging of the subsurface structures of materials has been successfully realized by this technique because thermal waves are heavily damped and have short wavelengths.
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And what is plotted below is the actual wave function, so you can see it starts very high and then the decays down.
下面这画的是，波函数，你们可以看见它开始非常高,然后衰减下来。
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