英语词汇“broadcast spectrum”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	broadcast spectrum
释义	broadcast spectrum noun : the part of the range of frequencies of electromagnetic waves assigned to broadcasting stations ranging in the United States from 550 to 1600 kilocycles per second for AM radio stations
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