“preferred frequencies for acoustical measurement”的概念、定义、翻译、参考文献-科学参考

单词	preferred frequencies for acoustical measurement
释义	preferred frequencies for acoustical measurement 声学测量的最佳频率
随便看	backrun backrun process back rush back salary back sand back saw backsawing back saw with wooden handle back-scatter back scatter backscatter back scatter beta gauge backscatter cross section back-scattered current back-scattered dose backscattered electron back-scattered electron back scattered electron detector backscattered electron image back-scattered radiation dose backscatter gage back scattering backscattering backscattering coefficient back-scattering factor

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