英语词汇“supplementary group”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	supplementary group
释义	supplementary group supplementary group [¦səp·lə¦men·trē ′grüp] (electricity) In wire communications, a group of trunks that directly connects local or trunk switching centers over other than a fundamental (or backbone) route.
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