英语词汇“crystal microphone”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	crystal microphone
释义	Definition of crystal microphone in English: crystal microphone noun A microphone which depends for its action on the piezoelectric activity of a crystalline substance. Origin 1920s; earliest use found in British Patents. Definition of crystal microphone in US English: crystal microphone noun A microphone which depends for its action on the piezoelectric activity of a crystalline substance. Origin 1920s; earliest use found in British Patents.
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Definition of crystal microphone in English: