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出典:Wiktionary
出典:『Wiktionary』 (2016/05/26 18:57 UTC 版)
quīnāria
quīnāriā
出典:Wikipedia
出典:『Wikipedia』 (2010/06/30 10:01 UTC 版)
A quinaria (plural: quinariae) is a Roman unit of area, roughly equal to 4.2 square centimeters (0.65 sq in). Its primary use was to measure the cross-sectional area of pipes in Roman water distribution systems. A "one quinaria" pipe is 2.31 centimeters (0.91 in) in diameter.
Quinaria