“大气折射与电波传播延迟”的概念、定义、翻译、参考文献-科学参考

单词	大气折射与电波传播延迟
释义	大气折射与电波传播延迟 Encyclopedia 理学大气折射与电波传播延迟释 atmospheric refraction and radio wave propagation delay大气折射与电波传播延迟地球大气是空间分布不均匀、且存在时变特性的非色散介质，电磁波可以透过大气传播。电波通过空气的传播过程中，空气的中性成分在传输路径上的密度沿路径发生变化，不同的密度对应折射本领不同，使得电波传播速度低于真空中传播速度、且传播方向发生偏折。
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