| 单词 | lead glass |
| 释义 | > as lemmaslead glass lead glass n. glass containing a substantial proportion of lead oxide. ΘΚΠ society > occupation and work > materials > derived or manufactured material > glass and glass-like materials > [noun] > glass > lead glass French paste1754 lead glass1856 lead crystal1902 1830 Philos. Trans. (Royal Soc.) 120 43 The tri-borate of lead glass is almost as colourless as good flint glass.] 1856 W. A. Miller Elements Chem. II. xi. 764 Lead glass has..the inconvenience of being readily scratched. 1930 W. A. Thorpe in Connoisseur Oct. 226/2 English lead-glass was peculiarly apt for cut decoration. 1946 Nature 26 Oct. 582/1 Colouring oxides such as iron, copper, etc., all produce more intense colours in heavy lead glasses than in ordinary lead-free glasses. 1965 C. S. G. Phillips & R. J. P. Williams Inorg. Chem. I. xiv. 546 Special glasses are made by adding other oxides: for example, lead glasses have a high refractive index and are used in crystal and flint glass. < as lemmas |
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