“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。
随便看	nutritionally essential amino acid nutritionally nonessential amino acid nutritional pathology nutritional physiology and metabolism Nutritional Pollen for predatory mite nutritional polyneuropathy nutritional quality nutritional regulation of quality nutritional requirement of the aged nutritional risk screening nutritional service of the aged nutritional support nutritional toxicology nutritional value nutrition and gene expression of aquatic organisms nutrition and health nutrition anthropology nutrition block seedling nutrition claims nutrition density nutrition education nutrition environment nutrition for miners nutrition function claims nutrition health

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