英语词汇“pistonphone”的意思、释义、用法解释及翻译-春雷网

词汇	pistonphone
释义	Definition of pistonphone in English: pistonphone noun Acoustics A device for producing known sound pressures by means of a vibrating piston whose motion is precisely measured, used mainly for calibrating microphones. Origin 1920s. Definition of pistonphone in US English: pistonphone noun Acoustics A device for producing known sound pressures by means of a vibrating piston whose motion is precisely measured, used mainly for calibrating microphones. Origin 1920s.
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Definition of pistonphone in English: