短語詞組短語negative acknowledge character [計(jì)][通信]否認(rèn)字符;[計(jì)]否定字符;反確認(rèn)字符;不認(rèn)可字符NAK Negative AcKnowledge character 否認(rèn)符;否認(rèn)信號(hào)NAC Negative Acknowledge Character 反確認(rèn)字符 返回 character negative acknowledge