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单词 heliozincography
释义

> as lemmas

heliozincography
heliozincography n.
Brit. /ˌhiːlɪə(ʊ)zɪŋˈkɒɡrəfi/
,
U.S. /ˌhilioʊzɪŋˈkɑɡrəfi/
(see quots.).
Π
1903 Nature 19 Nov. 60 Two new methods have now superseded photozincography; one of these, ‘heliozincography’, was worked out by the Ordnance Survey... The first method consists in reproduction direct on a sensitised zinc plate in contact with a reversed negative.
1936 H. S. L. Winterbotham Key to Maps xix. 196 We have seen above how work from paper may go direct to the zinc by a process known as vandyking. To do the same with a negative and a sensitized sheet of zinc is known as heliozincography.
extracted from helio-comb. form
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as lemmas
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更新时间:2024/11/10 12:02:37