“earth-ionosphere waveguide radio wave propagation”的概念、定义、翻译、参考文献-科学参考

单词	earth-ionosphere waveguide radio wave propagation
释义	earth-ionosphere waveguide radio wave propagation Encyclopedia 工学电离层电波传播释 earth-ionosphere waveguide radio wave propagation地-电离层波导电波传播地表层与低电离层（白天为D层，夜间为E层下部）所构成的同心球壳空间，以类似于微波平行金属板波导的机理，引导甚低频（3～30千赫）和极低频(0.3～3千赫)电波进行远距离直至全球范围的传播。
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