“cone-of-silence marker”的概念、定义、翻译、参考文献-科学参考

单词	cone-of-silence marker
释义	cone-of-silence marker [¦kōn ǝv `sī·lǝns ´märk·ǝr] ^NAVIGATION A marker beacon, usually a Z (for zone) marker beacon, located at a radio-range station; operates at 75 megahertz and produces a light signal accompanied by a 3000-hertz tone.
随便看	pyloric caecum pyloric sphincter pyloric stenosis pylorospasm pylorus pyobacillosis pyocyanin pyoderma pyogenesis pyonephritis pyonephrosis pyorrhea pyracetic acid Pyralidae Pyralididae Pyralidinae Pyralidoidea pyramid pyramidal area pyramidal cleavage pyramidal horn pyramidal iceberg pyramidal molecule pyramidal numbers pyramidal surface

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