| 摘要 |
<p>The frame (63) has a fixed window and sliding window (48) which when closed is flush with the fixed panel. The mobile sash is mounted on parallel carrier arms (56, 57) carried on trolleys (54, 55) running in a lower guide rail (53). Corresponding upper guide arms (64) run in guide rail. The lower carrier arms and trollies are arranged for outward displacement and sliding of the window.</p> |
