英语词汇“off-hook signal”的翻译、意思、用法、释义-英汉汉英词典

单词	off-hook signal
释义	off-hook signal摘机信号off-hook signal答话信号off-hook signal答話信號電機工程off-hook signal答話信號電力工程off-hook signal摘機信號電子計算機名詞
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