It is concluded from the presented results that the attenuation rate is weakly related to radius of tunnel and conductivity of tunnel wall. For a tunnel with arbitrary cross-section...
用数值分析方法求解了单线波模方程和双线波模方程，得出的主要结论为它们的衰减率与隧道壁电导率和隧道半径有微弱依赖关系。
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