Julian folded up the precious map and put it into his pocket.

朱利安把珍贵的地图折起来，放进口袋里。

Once the scan had also revealed the topography of the sheet, with the location of folds and creases mapped, the resulting model could be virtually unfolded by a computer to reveal the hidden text.

扫描一旦显示出纸张的的形态，并标出褶皱和折痕的位置，那么可以通过计算机将得到的模型展开来揭示隐藏的文本。