这种改进之后的印刷术叫做活板印刷术。
This improvement is called after the printing plate printing live.
凹版印刷术用蚀刻后的板或圆筒印刷的方法；
The process of printing from an intaglio plate, etched according to a photographic image.
凹版印刷术用蚀刻后的板或圆筒印刷的方法；
The process of printing from an intaglio plate, etched according to a photographic image.
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