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QF 12 12cwt高射砲
Wikipedia definition
1. QF 12 pounder 12 cwt AA gunThe 12 pounder 12 cwt anti-aircraft gun was borrowed for AA use from the QF 12 pounder 12 cwt coast defence gun with the addition of a modified cradle for higher elevation, a retaining catch for the cartridge, and an additional spring recuperator above the barrel and high-angle sights. Writers commonly refer to it simply as "12 pounder anti-aircraft gun". 12 cwt referred to the weight of the barrel and breech (12 x 112 lb = 1,344 lb) to differentiate it from other "12 pounder" guns.
Read “QF 12 pounder 12 cwt AA gun” on English Wikipedia
Read “QF 12ポンド 12cwt高射砲” on Japanese Wikipedia
Read “QF 12 pounder 12 cwt AA gun” on DBpedia

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