Gutenberg invented printing, the most consequential invention of the Middle Ages. The technical adventure of Gutenberg is very impressive. The printing press, the paper, the ink... . He manages to assemble all of these items, and to actually print books. Gutenberg tries a new form of layout and introduces a number of other innovations. The visual quality of his printing yields ... 《印刷术的诞生》的观看地址： http://www.wxszxjh.com/sp/Y8RXOzAzwKJQ.html由西瓜电影网提供,欢迎转发分享！