K
karat
カラット. 宝石の重量単位.
karat; or carat; a unit of weight for gem stones and pearls; equal to about 3.086 grains troy or 0.2 of a gram; (for gold) one 24th part of pure gold, e.g., 20-karatgold is 20 parts pure gold and 4 parts alloy;
[Chem:Mat:Mes:Eco].
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