| 摘要 |
A window, arranged in a frame, rotatable by 180.degree. around a central axis, having at least one casement which can be opened in a conventional manner, comprises an insulating glass pane made of a colourless glass pane and a selective absorption pane, a frame enclosing the insulating glass pane on all sides, a hinge arranged in the area of one lateral edge for the opening of the casement, a reversing hinge arranged in a vertical or horizontal central axis on the frame for the 180.degree. rotation of the insulating glass pane, a structurally fixed blind frame and an encircling gasket between the structurally fixed blind frame and the frame for the insulating glass pane.
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