When electrical parameter is change by wet tunnel wall, electromagnetic wave propagation attenuation will vary.

矿井隧道壁湿润会引起电参数改变, 从而使电磁波传播衰减率发生变化.

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When electrical parameter is changd by wet tunnel wall, electromagnetic wave propagation attenuation will vary.

摘要矿井隧道壁湿润会引起电参数改变, 从而使电磁波传播衰减率发生变化.

互联网