| 摘要 |
The fly trap proposed has a pot-like container (1) into which is inserted a funnel (3) with an aperture (5) inside the container. The inside of the container is filled with an oily or sticky fluid (6) to a level at which the fluid cannot spill whatever the position of the container. To trap the fly, the device (1) is lowered slowly over it, whereafter it can no longer escape from the inside (9). |
