还提供附属构筑物，例如游泳池，宾馆，树屋和温室。
Accessory structures are also available, such as a pool house, a guest house, a treehouse and a greenhouse.
渗渠工程设计主要包括水平集水管、反滤层、导水管、集水井、泵房和其他附属构筑物等。
The design of infiltration ditch contains the obtaining water tube, anti-filter layer, well, pump house and other accessory building.
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