| 摘要 |
<p>The device has a trough (1) defining a volume and stretched over a removable structure (2) supported on ground. The structure is formed of uprights (3), where each upright comprises a foot (4) at lower end. The foot is supported on the ground, and the uprights are connected by cross-pieces (5). The foot has a hole for receiving a pin spit (7) for fixing the foot to the ground. The uprights and cross-pieces include profiles obtained from pre-stressed aluminum. The trough has a peripheral wall (9) comprising a drain valve (11) connected to a filtering cartridge comprising a gelling agent.</p> |
