他们提出的新方式起始于一种观测—当某些特定的电磁辐射穿越大气层时，下雨会增加穿透的难度。
Their scheme starts from the observation that rain can make it harder for certain sorts of electromagnetic radiation to travel through the atmosphere.
研究叶簇对电磁波传播的影响对于雷达穿透叶簇探测隐蔽目标具有重要意义。
The effects of foliage on electromagnetic wave propagation are important in the detection of targets hidden underneath foliage.
用一维FDTD方法模拟了双指数脉冲在单层岩土介质中的衰减，并对电磁波在岩土层中的穿透进行了详细的讨论。
By using one-dimension FDTD method we simulates the decay of double exponential pulse through the soil media, and its refractive time-domain wave shape is discussed in detail.
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