导致软件特征膨胀的另一个常见因素是我们共同的系统需求和安全功能。
Another common contributor to software feature-bloat is our corporate system requirements and security functions.
研究了3gpp中移动通信的安全结构，对各个安全功能部分的基本需求进行了探讨。
A the security architecture of 3gpp is studied, the basic security requirements of each part are discussed.
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