pho·to·gel·a·tin process英ˌfəʊtəʊˈdʒelətɪn美ˌfotoˈdʒɛlətɪnAHDfō'tō-jĕlʹə-tĭn短语¹¹⁴⁴⁶⁷⁺⁴ 基本英英 珂罗版 Noun: a photomechanical printing process that uses a glass plate with a gelatin surface that carries the image to be reproduced; can be used with one or more colors