It shows that, for the one-dimensional photonic crystals, there are abnormal refraction in the first band.
结果表明，对于一维光子晶体，在第一能带内，存在反常折射现象。
It has been shown by studying the radar echo top heights that the abnormal refraction of the atmosphere can cause obvious errors in the radar measurements of height.
研究天气雷达测定回波顶高的几种误差表明：大气异常折射会引起回波顶高明显误差。
It has been shown by studying the radar echo top heights that the abnormal refraction of the atmosphere can cause obvious errors in the radar measurements of height.
研究天气雷达测定回波顶高的几种误差表明：大气异常折射会引起回波顶高明显误差。
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