Take for example the human-faced jar from the Shisanhang culture. The visage depicted on the piece is of complex design, with sharp angles and corners. For the work to be faithful to the original each angle had to be precise.
以十三行文化的人面陶罐為例，這是一個複雜的人物造型，有稜有角，因此各個角度都要很精準，接合起來，才會準。