“speech amplifier”的概念、定义、翻译、参考文献-科学参考

单词	speech amplifier
释义	speech amplifier [`spēch ´am·plǝ´fī·ǝr] ^{ENGINEERING ACOUSTICS} An audio-frequency amplifier designed specifically for amplification of speech frequencies, as for public-address equipment and radiotelephone systems.
随便看	maritime position maritime satellite maritime tropical air marjoram marjoram oil mark mark detection marker marker beacon marker bed marker buoy marker pulse market analysis mark-hold Mark-Houwink equation marking and spacing intervals marking bias marking current marking-end distortion marking pulse marking wave Markov chain Markov inequality Markovnikoff's rule Markov process

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