| 摘要 |
A roof structure for covering a reservoir, such as a liquid manure reservoir, comprises a roof membrane adapted to be secured at a periphery thereof to the reservoir, and an inflatable mast adapted to float on the slurry contained in the reservoir to stretch the roof membrane in a tent-like configuration over the reservoir. The inflatable mast comprises an inverted frusto-conical base portion adapted to gradually collapse as the level of slurry raises within the reservoir thereby maintaining the position of the roof structure irrespective of the level of slurry. |
