“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	risk analysis risk management Risley prism system Riss Rissoacea Riss-Würm Ritchey-Chrétien optics Ritchie's experiment Ritchie wedge Ritter reaction Rittinger's law Ritz formula Ritz method Ritz's combination principle riveling river River and Harbor Aid to Navigation System river bar river basin riverbed riverboat river bottom river breathing river buoy river capture

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