The key to power distribution system is to ignore transient process in this sub-system and to draw the network equivalent circuit diagram, therefore its node voltage equation is algebraic equation.

配电子系统的建模关键是忽略其内部的暂态过程并作出了网络的等值电路图，因而依此建立的节点电压方程为代数方程。

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The scheme realizes the incorporation of authentication and registration. Key distribution among mobile node, foreign agent and home agent is also achieved in the scheme.

该方案实现了认证和注册过程的一体化，并且实现了移动节点、外地代理和家乡代理三个实体间的密钥分配。

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Information distribution system, information distribution method, node device, key data management device, and recording medium.

信息传送系统，信息传送方法，节点装置，密钥数据管理装置，和记录介质。

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