摘要
随着通信的发展,对UPS提出了更高的要求,本文介绍了UPS功能变化经历的三个发展阶段和存在的问题。
Along with the development of the correspondence, put forward the higher request to the UPS, this text introduced the stage in three developments that UPS function variety experience with the existent problem, and from now on the UPS power supply system develop facing two directions.
出处
《电信工程技术与标准化》
2005年第11期63-64,共2页
Telecom Engineering Technics and Standardization
关键词
UPS
特性
发展
UPS, resistance bottleneck, development
