| 摘要 |
The device has at least one chamber (14), a dispensing area (16) and a passage area (19) which connects the chamber and the dispensing area and can be opened in a selective manner. An increase in the surface area can be achieved, at least in one section of the dispensing area, by the configuration of grooves in the upper and/or lower film, said grooves extending longitudinally in the direction of flow. |
