electro-engraving
now rare
noun
Engraving in which metal is etched by electrolysis or (in early use) by a tool conveying an electric current.
Origin
Mid 19th century.
| 单词 | electro-engraving |
| 释义 | electro-engravingnow rare noun Engraving in which metal is etched by electrolysis or (in early use) by a tool conveying an electric current. Origin |
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