U).（（主に米国）USの別形）とは - 英語 - 多言語

(military) Initialism of unauthorized absence. / (countable, UK, government) Initialism of unitary authority. / (countable, computing) Initialism of user agent.

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The sergeant filed a report stating the soldier was UA and recommended disciplinary action.

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U.S. G.P.O.

固有名詞

略語別表記イニシャリズム

Initialism of United States Government Printing Office.

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The U.S. G.P.O. released updated stationery guidelines for federal agencies.

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OPC UA

固有名詞

略語別表記

(communication, programming) Abbreviation of OPC Unified Architecture (an industrial M2M communication protocol for interoperability developed by the OPC Foundation)

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The factory upgraded its control system to support OPC UA for secure, vendor-neutral machine-to-machine communication.

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U.S.S.R.

IPA（発音記号）

/ˌju.ɛs.ɛsˈɑ(ɹ)/

固有名詞

別表記異形

Alternative spelling of USSR

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During the Cold War, many scholars analyzed the military strategies of the U.S.S.R.

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UAC

名詞

略語別表記イニシャリズム不可算名詞可算名詞

(uncountable, computing, Microsoft Windows) Initialism of User Account Control: a technology that limits application software to standard user privileges until an administrator authorizes further privileges.