中文翻译与英英解释 | duplicator consisting of a gelatin plate from which ink can be taken to make a copy
同义词：heliotype,
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| copy on a duplicator; "hectograph the hand-outs"
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| The hectograph or gelatin duplicator or jellygraph is a printing process which involves transfer of an original, prepared with special inks, to a pan of gelatin or a gelatin pad pulled tight on a metal frame. |
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