文章论述了UPS(不间断电源系统)的原理和性能指标，并从网络设备维护管理工作实践出发，总结了UPS使用的技巧和维护要点。
In this paper, the principle and the performance index of UPS is presented. It also summarizes the skills and maintains of UPS based on the practice of management of network equipments.
你需要有公司来帮你维护公司的计算机网络设备。
You need a company to maintain and service your computer network.
电信数据网络资源管理系统是OSS系统中的重要部分，实现电信数据网络上的各种网络设备，物理链路，用户链路等资源信息的维护，配置，调度等功能。
Telecom network resource Management System is the most important part of OSS. It can manage, configure and dispatch resources including network devices, physical circuits and logic circuits.
电信数据网络资源管理系统是OSS系统中的重要部分，实现电信数据网络上的各种网络设备，物理链路，用户链路等资源信息的维护，配置，调度等功能。
Telecom network resource Management System is the most important part of OSS. It can manage, configure and dispatch resources including network devices, physical circuits and logic circuits.
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