第三代髓内钉系统更安全可靠。
软件无线电技术已经成为第三代移动通信系统中的关键技术。
SR technology has been the key technology of the 3rd generation mobile communication system.
因此，国内各大移动运营商都在积极部署第三代移动通信系统。
Therefore, each large mobile operator is deploying the third generation mobile system.
目前，第三代移动通信正在致力于开发智能天线系统。
Now, smart antenna system has being developed for the Third Generation Mobile Communication (3G).
分布式控制系统属于第三代过程控制系统。
本文着重研究了第三代移动通信系统的安全。
This paper is devoted to the security of 3g mobile communication system.
本文着重研究了第三代移动通信系统的安全。
This paper is devoted to the security of 3g mobile communication system.
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