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单词 胶制剂
释义 〔heliotype〕A photomechanically produced plate for pictures or type made by exposing a gelatin film under a negative, hardening it with chrome alum, and printing directly from it.珂罗版印刷法:一种通过照相制版工艺制造出来的用于印刷图片或文字的图版,将一层胶制剂薄片置于底片之下,用硫酸铬钾使之坚硬,然后便可直接印刷〔hectograph〕A machine employing a glycerin-coated layer of gelatin in order to make copies of typed or written material.胶版誊写机:一种机器,使用外裹甘油的胶制剂对打印或手写的材料进行复制
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