When the distance between the RFID card reader and the RFID label is beyond the preset range, the main controller enables the electronic equipment to work in an emergency mode.
当RFID读卡器与RFID标签的距离超出该预定范围时，主控制器使电子设备工作于紧急模式。
When the distance between the RFID card reader and the RFID label is beyond the preset range, the main controller enables the electronic equipment to work in an emergency mode.
当RFID读卡器与RFID标签的距离超出该预定范围时，主控制器使电子设备工作于紧急模式。
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