| 摘要 |
<p>The moving pavement or steps (34) run between two double frame members. Each frame member consists of an outer C-section frame (16), with a top-hat-section frame (18) fitting inside it. The inwardly-turned edges of the C-section and the outwardly-turned edges of the top-hat-section are held by heads (28,30) attached to bolts (20,22) providing a connection e.g. to a framework of a building.</p> |
