接着分析了复杂网络管理中的问题，提出了一个分层分布式网管模型，分析了其组成要素。
Based on the analysis of the problems in complex network management, it presents a layered distributed network management model and explains its components.
群首委任机制是分群工作的一部分，也是实现分层分布式网络管理思想的一个必不可少的环节。
The Cluster Head Delegation mechanism is the part of work of clusting, and it is an essential part of the implementation of the hierarchical and distributed network management system.
分析了网络管理协议和网络管理的一般模型，给出了集中式、分层式和分布式三种网络管理体系结构。
Network management protocol and the general model of network management have been analyzed. The centralized, hierarchical and distributed system structure of network management have been put forward.
本文采用分层分布式结构构建电压无功协调控制系统，系统由管理级、变电站控制级和现场控制级构成。
In this article, structure of layering and distributing is introduced and the coordinated control system consists of the supervisory level, the substation control level and field control level.
在此基础上实施分层分布式综合自动化系统，从而在技术上保证了无人值守变电所的供电可靠性，满足了安全供电的管理要求，同时实现了改造效益最大化目标。
As a result, it ensures the power supply reliability of unattended substation technically, meets the requirement of safe power supply management and achieves the goal of maximum reformation benefits.
重点讨论了分层分布式安全监测系统的结构：基本监测控制层(BMC层)；直接数据控制层(DDC层)和监测控制管理层(MCM层)。
Deals with multilayer distributed system construction, discussed Basic Monitor Control layer (BMC layer), Deriction Data Control layer (DDC layer), Monitor Control and Management layer (MCM layer).
该结构是以分层递阶控制为主体系统结构，引入了基于模块化分布式电源管理系统，并在传感/底层决策层采用了基于包容式体系结构。
It is a hierarchical control structure for the main system, which a modular-based Distributed Power Management System is introduced in.
目前的多播密钥管理方案主要包括集中式、分布式和分层分组式，它们各有优缺点，适用于不同的情况。
At present, group key management mainly divided into centralized, distributed and hierarchical forms, all of them have their own character and can be used in different applications.
目前的多播密钥管理方案主要包括集中式、分布式和分层分组式，它们各有优缺点，适用于不同的情况。
At present, group key management mainly divided into centralized, distributed and hierarchical forms, all of them have their own character and can be used in different applications.
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