| 摘要 |
A packaging for a food product is made in the form of a closed cavity for placement of a product formed of at least three walls. A closed cavity is a polyhedron, whose walls arranged one behind the other are joined along the perimeter by end faces in the form of polygons, which are symmetrical in cross section and each wall, except for one, has in the central part a line of decreased strength formed by applying perforation intended for breaking packaging into two parts to produce two cavities connected by a non-perforated wall. |
