“double frequency shift keying”的概念、定义、翻译、参考文献-科学参考

单词	double frequency shift keying
释义	double frequency shift keying [¦dǝb·ǝl `frē·kwǝn·sē ¦shift `kē·iŋ] ^{COMMUNICATIONS} Multiplex system in which two telegraph signals are combined and transmitted simultaneously by a method of frequency shifting between four radio frequencies.
随便看	nasal crest nasal height nasal index nasal pit nasal process of the frontal bone nasal process of the maxilla nasal root breadth nasal root salient nasal septum nasal tip height nasal tip salient nascent nascent ribonucleic acid n'aschi Nasellina nasion nasion-menton nasolacrimal canal nasolacrimal duct nasolacrimal groove nasonite nasopalatine cyst nasopalatine duct nasopharynx nastic movement

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