| 摘要 |
<p>The system (12) has multiple strand elements (14, 15) arranged next to each other. The strand elements form respective networks (17, 18), and are extended below and from a side of a flat building structure (11). The network provides access to one or multiple portions of a center area of a bottom (10) of the building structure to examine, control and/or repair the bottom of the building structure by a person. Distance between the networks is equal to 20 mm, preferably 15 mm or within a range of 5-15 mm. The strand elements are provided for holding and/or securing the person.</p> |
