| 摘要 |
<p>1. Single-aisle or multi-aisle agricultural multipurpose building with energy-saving air-conditioning, having flexible and/or rigid cover elements (3, 4, 4/a, 5, 5/a, 6, 7, 8, 9, 10) which are held, by way of fastening elements, by beams (1, 2) which are constructed in the form of duct-forming profiles that are multi-angular in cross-section and are provided with openings, for guiding at least one gaseous or liquid medium for conditioning, characterised in that the profile of the beam has at least one duct (57) that is open towards the top.</p> |
