射频消融术治疗肝肿瘤有那些局限性？
What are the limitations of Radiofrequency Ablation of Liver Tumors?
针对传统无线通信是单向传输的局限问题，设计了基于nRF 905射频芯片的双向通信系统并以单片机为主控制单元。
Based on the traditional wireless communications limited transmissions is limited, based on the NRF905 rf chip design of two-way communication system and MCU control unit mainly.
射频识别(RFID)系统信道的开放性以及设备的特殊性和局限性为设计安全、高效的RFID安全协议带来了极大的挑战。
It is a great challenge to design an effective authentication protocol for Radio Frequency Identification (RFID) system due to the openness of the channel and the particularity of the device.
然而，射频识别技术本身还存在着一些尚未解决的问题，使它还未能走向大规模应用，只局限于小范围的示范应用。
However, RFID technology itself is the existence of unresolved issues, it also failed to move toward large-scale applications and is still limited to small-scale demonstration application.
然而，射频识别技术本身还存在着一些尚未解决的问题，使它还未能走向大规模应用，只局限于小范围的示范应用。
However, RFID technology itself is the existence of unresolved issues, it also failed to move toward large-scale applications and is still limited to small-scale demonstration application.
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