| 释义 |
semi-ˈvitreous, a.
[semi- 8 a.]
Partially vitreous.
1782Wedgwood in Phil. Trans. LXXII. 317 By a very strong fire, they are changed to a porcelain or semi-vitreous texture. 1807T. Thomson Chem. (ed. 3) II. 339 Semi-vitreous oxide of lead. 1813Bakewell Introd. Geol. (1815) 421 Semivitreous lava. 1890Q. Jrnl. Geol. Soc. XLVI. i. 74 Finely vesicular rhyolitic rock with compact semivitreous green-grey base.
So ˌsemi-vitrifiˈcation, -ˈvitrified ppl. a.
1753Chambers's Cycl. Suppl., Slacken,..a term used by the miners to express a spungy and semivitrified substance. 1791E. Darwin Bot. Gard. I. Notes 52 The semivitrification, which constitutes porcelain. 1794Kirwan Elem. Min. (ed. 2) I. 396 That which produces enamels and semi-vitrifications. 1841Proc. Amer. Philos. Soc. II. 4 The semi⁓vitrified quartz rock of the western part of the Hoosae mountain. 1889C. T. Davis Pract. Treat. Bricks, etc. (ed. 2) 78 A degree of heat when semi-vitrification and shrinkage take place. |