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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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domain name server spoofing
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domain name service, DNS
domain name space
domain name system
domain name system, DNS
domain name system,DNS
domain name system security
domain name system security extensions
domain name system security extensions, DNSSEC
domain of absolute elsewhere
domain of absolute future
domain of absolute past
domain of a correspondence
domain of action
domain of acts
domain of a function
domain of a mapping
domain of a morphism
domain of an operator
domain of applicability
domain of attraction
domain of connectivity
domain of convergence
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