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单词 photo-galvanography
释义

photo-galvanography

/ˌfəʊtə(ʊ)ɡalvəˈnɒɡrəfi/
Now historical
noun
A process for obtaining a relief printing plate from a photograph, in which a relief negative of the photograph is made in sensitized gelatin and a gutta-percha positive taken from this, which is then electroplated.

Origin

Mid 19th century. From photo- + galvanography. Compare slightly earlier photo-galvanographic, and slightly later photogalvanic.

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更新时间:2025/1/12 9:27:02