…In modern Britain, the unit is not used as a multiple or fraction of this unit, and fractions are expressed as decimals, but in the United States the multiple is the troy pound (= 12 oz tr, symbol lb tr) and the fraction is the pennyweight (= 1/20 oz tr, symbol dwt). … *Some of the terminology that mentions "lb tr" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…現在のイギリスではこの単位の倍量単位,分量単位を用いず,端数は十進法の小数によって表すが,アメリカでは倍量単位はトロイ・ポンド(=12oz tr。記号lb tr),分量単位はペニーウェイトpennyweight(=1/20oz tr。記号dwt)である。… ※「lb tr」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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