uninterrupted power supply (UPS)

来源: slow_quick 于 2012-08-23 19:43:26 [] [博客] [旧帖] [给我悄悄话] 阅读数 : (0 bytes)
回答: '断电保护电池" how to say in English? 由 peteryan 于 2012-08-23 19:34:29
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