| 摘要 |
The device comprises a funnel and a bag (15) of thin foil extending through the funnel via its narrower outlet aperture. The bag with its mouth part (15A) is folded around the edge of the funnel wider inlet aperture. The bag is pulled downwards on the funnel exterior and its bottom part extends outwards from the funnel in the outlet aperture. In this way, the bag comprises partly a collecting container and partly an exchangeable lining for the funnel. |
