凸版印刷是一种字模或其他母体与纸张直接接触的印刷工艺。
Letterpress involves a direct contact between the type and other items being printed and paper.
印刷工艺：包括印刷，电信，出版，广告和其他有关的美术或专业制作的科技领域。
Graphic arts: the field of technology encompassing printing, telecommunications, publishing, advertising, and other related artistic or professional endeavour.
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