| 单词 | pimple copper |
| 释义 | > as lemmaspimple copper ΘΚΠ society > occupation and work > materials > derived or manufactured material > metal > base metal > [noun] > copper > types of garcopper1654 rose copper1678 tile copper1825 pimple copper1848 blister-copper ore1861 pimple metal1870 tough-cake1881 tough pitch1881 electrolytic1912 1848 Jrnl. Franklin Instit. Apr. 318 Cuivre Ampoulé,..crude copper ready for refining called ‘pimple copper’. 1871 W. A. Miller Elem. Chem. (ed. 3) ii. 611 The ingots thus obtained, being full of bubbles, are termed pimple or blistered copper. 1920 Internat. Libr. Technol.: Cyanide Process §36. 43 (heading) Smelting for Pimple Copper.—The preceding method is employed when it is desired to obtain blister copper from coarse metal. < as lemmas |
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