| 摘要 |
Each bag (1) has a first and a second facing principal wall (2, 3) that defines a pocket which has an opening. There is an assembly of superimposed bags and the bags are connected in series, near their opening, by a separable connection (7). The connection joins the principal walls to the adjacent principal wall of the neighbouring bag. As each bag is lifted by pulling it in the superimposition direction to break the connection the lifting is accompanied by a spacing of the bag walls.
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