RFID systems achieve auto-identification and data-gathering of the object to be identified by utilizing space coupling of radio frequency signal to conduct two-way transmission of signals.
RFID系统利用射频信号通过空间耦合进行双向信息传输，实现对待识别物体的自动识别和数据采集。
In addition, the shielding layer on the radio frequency identification key can also shield the RFID signal duly, so the safety problems of user RFID information disclosure and the like are prevented.
另外，射频识别钥匙上的屏蔽层也能将RFID信号进行适时屏蔽，这样，就防止用户的RFID信息外漏等安全问题。
In addition, the shielding layer on the radio frequency identification key can also shield the RFID signal duly, so the safety problems of user RFID information disclosure and the like are prevented.
另外，射频识别钥匙上的屏蔽层也能将RFID信号进行适时屏蔽，这样，就防止用户的RFID信息外漏等安全问题。
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