混凝土内部裂缝对电磁波传输特性参数的影响
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Impacts of cracks in concrete on characteristic parameters of electromagnetic wave transmission
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图7. S21参数在5~10 GHz的频率范围内有裂缝与无裂缝的频率特征 |
Fig.7. S21 parameter takes logarithm as the ratio of crack and no crack in the frequency range of 5~10 GHz |
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