英语词汇“first sound”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	first sound
释义	first sound first sound [′fərst ‚sau̇nd] (cryogenics) Ordinary sound in helium II, in which pressure and density variations are propagated; in contrast to second sound.
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英语词典包含2567994条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。