“four-wire subscriber line”的概念、定义、翻译、参考文献-科学参考

单词	four-wire subscriber line
释义	four-wire subscriber line [`fȯr ´wīr sǝb`skrīb·ǝr ´līn] ^{COMMUNICATIONS} Four-wire circuit connecting a subscriber directly to a switching center.
随便看	surfactant flooding surf beat surficial creep surficial deposit surficial geology surf ripple surf zone surge surge admittance surge arrester surge bunker surge column surge current surge drum surge electrode current surge generator surge header surge impedance surge line surge protector surgery surge stress surge suppressor surge tank surgical needle

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