| 摘要 |
<p>The box has two outer fields (1) joined at a first fold line (2); two inner fields connected at a second fold line; and a third fold line (5) between inner and outer fields, connecting them to each other. The inner fields are narrower than the outer fields, and lie flat against each other. The second fold line is very close to the first fold line. There is a device (7, 8, 9) in the region of the third fold line to hold the inner fields opposite each other.</p> |
