| 摘要 |
<p>The system (A) has a forming element that comprises an outer jacket, an upper layer, and a lower layer that is arranged at the back of a binding. The outer jacket comprises a set of prefolding lines, and a set of strips is arranged with an extreme point of a set of slots opposite the strips. The set of strips is intended to be sewn with a book block (B). The outer jacket is allowed to be folded up, and the set of strips is inserted into the set of slots to obtain a bound document. The set of strips is arranged with a set of contours.</p> |
