“telephone modem”的概念、定义、翻译、参考文献-科学参考

单词	telephone modem
释义	telephone modem [`tel·ǝ´fōn `mō´dem] ^ELECTRONICS A piece of equipment that modulates and demodulates one or more separate telephone circuits, each containing one or more telephone channels; it may include multiplexing and demultiplexing circuits, individual amplifiers, and carrier-frequency sources.
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