Printing with moveable type on paper dramatically reduced the cost of producing a book compared with the old-fashioned ones handwritten on vellum, which comes from sheepskin.

羊皮纸是用羊皮制作的，与在羊皮纸上手写的老式方法相比，在纸上进行活字印刷大大降低了生产书籍的成本。

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Printing with a moveable type on paper dramatically reduced the cost of producing a book compared with the old-fashioned ones handwritten on vellum, which comes from sheepskin.

羊皮纸是用羊皮制作的，与在羊皮纸上手写的传统方法相比，在纸上进行活字印刷大大降低了生产书籍的成本。

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