…The Troy pound and the apothecary pound are both equal to 5760 gr, or about 373.24 g, and their unit symbols are lb tr and lb ap, respectively (tr stands for troy, and ap stands for apothecaries'). The unit of force in the imperial gravitational system (pound force) is sometimes simply called the pound. Its magnitude is equal to about 4.45 N (newton), assuming the gravitational acceleration to be 9.8119 m/ s2 . … *Some terminology explanations that mention "pound force" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…トロイ・ポンドと薬用ポンドはともに5760grに等しく,約373.24gであり,単位記号はそれぞれlb tr,lb apである(trはtroyの,apはapothecaries’の略である)。なお,ヤード・ポンド法による重力単位系の力の単位〈重量ポンドpound force〉を単にポンドということがある。その大きさは,重力加速度を9.8119m/s2として,約4.45N(ニュートン)に等しい。… ※「pound force」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 |
>>: "Le Pour et Contre" (English: Le Pour et Contre)
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