It adds a unilateral function and a shared key to the key management which makes encryption key and authentication key alter periodically so the security for the network communication is enhanced .

在密钥管理中加入了一个 单向 散列函数和一个共享密钥，使得加密密钥与认证密钥周期性动态变化，从而增强了 网络通信的安全性。

The traditional LBS limited to unilateral location information showing could not meet the growing demand for social network .

但传统的LBS仅限于 单方位置信息呈现已不能满足人们日益增长的社交 网络需求，实现多方位置共享具有重要的现实意义。

The neuron network organized by the CPGs connected in line with unilateral excitation has been introduced to control the 3D locomotion of the snake-like robot and then the necessary condition is also presented for the CPG neuron network to sustain a rhythmic output .

采用 单向激励方式连接该类CPG构建蛇形机器人三维运动神经网络控制体系，给出该CPG 网络产生振荡输出的必要条件。

After whole transition the development of DTV yet has problems about that unilateral network is basic program resource is lack and good payoff model is few etc.

整体转换后，数字电视的发展仍然面临 单向 网络为主、节目资源匮乏、缺乏好的盈利模式等问题；

The Application of Optical Fiber in Unilateral Surveillance Network

光纤在 单向监控 网络中的应用