“acoustic transponder”的概念、定义、翻译、参考文献-科学参考

单词	acoustic transponder
释义	acoustic transponder [ǝ`küs·tik tranz`pän·dǝr] ^NAVIGATION A device used in underwater navigation which, on being interrogated by coded acoustic signals, emits acoustic reply.
随便看	facilitated transport facility assignment facility dispersion facility security clearance facing facing-point lock facing wall facsimile facsimile chart facsimile modulation facsimile posting facsimile receiver facsimile recorder facsimile signal facsimile signal level facsimile synchronizing facsimile telegraph facsimile transmitter factor factorable integer factorable polynomial factor analysis factor comparison factor group factor I

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