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.
首先，分析检测原理，由于钢筋深埋在水泥杆里，检测手段必须具有穿透性，综合考虑选择电磁法作为检测方法；
Firstly, as an principal condition, the testing media must penetrate the deep concrete to steel bars, for this consideration, the electromagnetic method is supposed to be an principal testing method;
当一个无线电信号(电磁波)传播进入电离层时，它也许会被吸收、削弱、折射，或者会穿透并进入太空。
When a radio signal (an electromagnetic wave) propagates into the ionosphere, it might be absorbed, attenuated, refracted, or it might shoot right through and out into space.
当一个无线电信号(电磁波)传播进入电离层时，它也许会被吸收、削弱、折射，或者会穿透并进入太空。
When a radio signal (an electromagnetic wave) propagates into the ionosphere, it might be absorbed, attenuated, refracted, or it might shoot right through and out into space.
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