英语词汇“pistonphone”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	pistonphone
释义	pis·ton·phone \-ˌfōn\ noun Etymology: piston + -phone : an instrument for measuring acoustic intensity by the displacement of a piston resulting from the sound pressure upon it
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