| 摘要 |
A box is particularly used for holding computer disks. The box has a back wall, a bottom wall, sidewalls and a front wall. The front wall has lower, middle, and upper panels connected by hinges. The top wall is connected to the upper panel. The front wall is secured through the sidewalls by a pin that allows the front wall to fold between open and closed positions. In the open position, the lower panel and the upper panel are parallel with the bottom wall.
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