| 摘要 |
<p>The prop (8) has two vertical side walls (72) settled perpendicular to a main wall (71), where the prop is made of a prop sheet. Ends of the vertical side walls are connected together. Two supporting plates (73) are arranged horizontal to upper ends of the side walls. A rear wall comprises a bottom wall that is integrated with two vertical walls. The rear wall extends along vertical direction of a set of shelves, where the shelves are arranged one above another.</p> |
