| 单词 | soft glass |
| 释义 | > as lemmassoft glass d. Of glass: softening at a relatively low temperature when heated. Frequently in soft glass. Cf. hard glass n.Soda-lime glass and lead glass are examples of soft glasses. They are less resistant to the effects of heat and chemcial action than hard glasses such as borosilicate. ΘΚΠ society > occupation and work > materials > derived or manufactured material > glass and glass-like materials > [adjective] > other types of glass blownc1425 Bohemian1682 grounded1698 soft1758 unsilvered1772 navelledc1817 drawn-out1822 muffled1847 ambitty1856 muffed1868 roughcast1868 Sandwich1881 fumé1883 hand-blown1885 peach-blow1886 opaque1907 mould-blown1925 offhand1941 1758 R. Dossie Handmaid to Arts I. ix. 228 When this flux is easily fusible, that is to say, melts with a less degree of heat, it is..said to be Soft. 1807 A. Aikin & C. R. Aikin Dict. Chem. & Mineral. I. 491/1 The result will be a soft glass retaining nearly equal parts of alkali and silex. 1925 F. W. Hodkin & A. Cousen Textbk. Glass Technol. vi. 51 A..vessel of soft soda-lime glass in which water is boiled, will liberate so much alkali in 15 minutes as to make impossible correct titrations with decinormal solutions. 1965 C. S. G. Phillips & R. J. P. Williams Inorg. Chem. I. xiv. 545 Soft glasses are made by adding soda to the silica. About 25 per cent soda reduces the viscosity of a glass by a factor of 1010. 2002 G. McLaren Studio Glass 28 Enamel is a soft glass with a low melting temperature that contains metallic oxides that provide the colouring ingredient. < as lemmas |
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