基本解釋否定字符詞組短語短語NAK Negative AcKnowledge character 否認符;否認信號NAC Negative Acknowledge Character 反確認字符character negative acknowledge 字符負確認negative acknowledge character更多詞組專業(yè)釋義計算機科學(xué)技術(shù)否認字符否定字符否認字元負確認字元反確認字元電子、通信與自動控制技術(shù)否認字符否定字符機械工程不認可字元