| 摘要 |
A bag with a tube-shaped body is made of a flexible material, sealed to from the bottom and opening at the top. It also has a separate sealing device in order to close the opening for the purposes of storage and transport. On the tube-shaped body there are at least two parallel pre-cut lines on the front and back or printed markings that run from the opening of the bag to the bottom and that lead to two lateral strips that are designed to be tied into a knot and thereby shut the opening of the bag once it has been opened without the need for separate sealing devices.
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