| 摘要 |
Under the edge of the roof structure (2) is a channel (5) for catchment of water coming from the source (11). The channel is connected to the source by a pump (8). At or under the edge of the roof structure is a pipe (11) with downwardly directed nozzles. The channel is connected by the pump with the pipe with the downwardly directed nozzles.- DETAILED DESCRIPTION - A pipe (9) delivers water onto the roof, where it is distributed by a fountain. From this pipe a further pipe (18) branches, leading to a well
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