| 摘要 |
<p>The reservoir includes a flexible cover laid thereon. A transverse walkway extends along an end thereof. A transverse handrail is mounted along the walkway, along an inside edge of the walkway. A cover-winding gap extends under the handrail and above the walkway. This cover-winding gap extends in a plane of the handrail. The cover-winding gap extends unobstructed under the handrail and above the walkway and along the full width of the reservoir. Because of this cover-winding gap, the flexible cover can be wound up in a spool in one stride across the reservoir.</p> |
