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单词 coperta
释义 coperta|kəʊˈpɜːtə|
[It., = covering, f. coprire to cover.]
A film of glaze given as a final coating to later Italian majolica ware.
1885Encycl. Brit. XIX. 625/1 The glaze, ‘coperta’, an ordinary glass, made more fusible by the presence of lead, consisted of oxide of lead 17 parts, silica (sand) 20, alkali 12, and common salt 8 parts.1903Solon Hist. O. Fr. Faïence 186. 1937 Burlington Mag. Dec. 277/1 A transparent lead glaze—the coperta of the Italian writers.
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