| 摘要 |
<p>The funnel (1) can be screwed onto the aperture (21) of a container (20) with a thread (24). It has a funnel bowl (2) and a funnel connector (4), the external diameter (d2) of which is smaller than that of the container aperture. A jacket (6) with a free lower edge (7) is fitted to the external surface (5) of the funnel bowl. Its internal diameter (d3) is not less than the external diameter of the aperture in the container. When the funnel is fitted, the free lower edge of the jacket rests on the container.</p> |
