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- 射频卡协议,射频识别,RFID(Radio Frequency Identification)技术,又称无线射频识别,是一种通信技术,可通过无线电讯号识别特定目标并读写相关数据,而无需识别系统与特定目标之间建立机械或光学接触。(Radio frequency identification, RFID (Radio Frequency Identification) technology, also known as radio frequency identification, is a kin