Jisho

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ていでんでんげんそう 無停電電源装置
Noun
1. Uninterruptible Power Supply; UPSComputing
Wikipedia definition
2. Uninterruptible power supplyAn uninterruptible power supply, also uninterruptible power source, UPS or battery/flywheel backup, is an electrical apparatus that provides emergency power to a load when the input power source, typically mains power, fails. A UPS differs from an auxiliary or emergency power system or standby generator in that it will provide near-instantaneous protection from input power interruptions, by supplying energy stored in batteries or a flywheel.
Read “Uninterruptible power supply” on English Wikipedia
Read “無停電電源装置” on Japanese Wikipedia
Read “Uninterruptible power supply” on DBpedia

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