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地-电离层波导电波传播
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地-电离层波导电波传播
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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appreciation
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appreciative quality of clothing art
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apprenticeship learning environment
Apprenticeship Training
Apprenticshipin Early Canada
approach
approach-approach conflict
approach-avoidance conflict
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approaches of choice-of-law
approaches of urban geography of China
approach infinity
approaching sampling technique
approaching system
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approach to moral education
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AP projection
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