| 摘要 |
<p>The sand container can have sections of different shapes, semi-circular in section and having either straight or curved lengths. The ends of the segments are fitted with male projections (2) at opposite corners and receiving hooks (3) at the other corners. The segments can be latched together to form a closed ring. The curved segments can form either one quarter or one eighth of a circle. The length of the straight segment is twice the outer radius of the curved segment. The segments may be coloured and have outside flanges.</p> |
