英语词汇“busy test”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	busy test
释义	busy test busy test [′biz·ē ‚test] (communications) A test, in telephony, made to find out whether certain facilities which may be desired, such as a subscriber line or trunk, are available for use.
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