英语词汇“photophone”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	photophone
释义	Word Frequency photophone (ˈfəʊtəʊˌfəʊn) noun physics a device for the communication of sound on a beam of light. Used to transmit the first ever wireless telephone messages.
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