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PTR can refer to: * PTR 91F, an American-manufactured civilian semi-automatic rifle. * PTR record or pointer record, a type of DNS record in computer network configuration * Product and Technical Review, a technical design review presentation and documentation package * PetroChina (NYSE: PTR), a Chinese oil company * Physikalisch-Technische Reichsanstalt, historical name of a German research institute, now called Physikalisch-Technische Bundesanstalt * Pool Test Reactor, a Canadian nuclear reactor * Professional Technical Reference, a category of books published by Prentice Hall * Planar ternary ring, an algebra used to coordinatize projective planes. * Plastic tank radiator, a type of automotive radiator with a plastic tank and metal core * Public Test Realm, a World of Warcraft server for previewing new content * Popstars: The Rivals, a British talent show * Paid to read, a type of online incentive-based advertising where members receive payment for reading emails with ads and for clicking on advertisers' links * Parappa the Rapper, a video game for the Sony PlayStation *Paper Tape Reader, legacy name for a general-purpose RS-232 input device under CP/M * Particle Transfer Roller, a device for cleaning motion picture film * Proton-transfer-reaction mass spectrometry, a chemical analysis technique. * Pitrilysin, an enzyme 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「PTR」の詳細全文を読む スポンサード リンク
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