| 摘要 |
A multi-storey hive consists of the bottom, an under-roof part, a roof and bodies of rectangular cross-section with the same frames arranged vertically on each other. The bodies are larger and smaller by sizes thereof. While arranging the frames along one plane, they are put one above the other, and, while turning thereof as regards to each other for 90in the horizontal plane, the smaller body can be disposed in the larger body. |
