...This definition was established by the Weights and Measures Act of 1824, regardless of the previous definition based on standard instruments. (2) US gallon The US gallon is a base unit of liquid volume, derived from the wine gallon used in England before 1824, and is defined as 231 cubic inches, or about 3.785 dm3. The unit symbol is gal for both the imperial gallon and the US gallon, but the former is also written as gal(UK) and the latter as gal(US). ... *Some of the terminology that mentions "wine gallon" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…この定義は1824年の度量衡法により,それ以前の標準器に基づく定義とは無関係に制定されたものである。(2)米ガロン 米ガロンは液量の基本単位で,1824年以前にイギリスで用いられていたワイン・ガロンwine gallonに由来し,231立方インチと定義され,約3.785dm3である。単位記号は英ガロン,米ガロンともgalであるが,前者をgal(UK),後者をgal(US)とも書く。… ※「wine gallon」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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