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| 单词 | gum-bichromate |
| 释义 | > as lemmasgum-bichromate gum-bichromate adj. Photography designating a process of printing on paper coated with a mixture of pigment, gum-arabic, and potassium bichromate; also designating a print so produced. ΘΚΠ society > leisure > the arts > visual arts > photography > photographic processes > [adjective] > type of printing gum-bichromate1897 1897 E. J. Wall Dict. Photogr. (ed. 7) 117 The gum-bichromate or photo-aquatint process. 1900 Daily News 1 Oct. 7/4 A striking profile done in red by the gum-bichromate process. 1919 Brit. Jrnl. Photogr. Almanac 252 In the gum-bichromate process, also termed aquatint or photo-aquatint. 1962 M. L. Haselgrove Photographers' Dict. 124 Gum bichromate prints. These are made by a nearly obsolete process, but are luckily still to be seen in our major exhibitions. < as lemmas |
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