mangelin
名词 n.
英文释义
名词 n.
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A weight used to weigh precious stones, weighing more than a carat, usually 1¾ carats.
— The chief weight of Diamonds, is the Mangelin; it weighs five Grains and three fifths, and the Carat weighs only four grains, and five Mangelins make seven Carats.
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数据来源: Wiktionary