| 摘要 |
A covering for an architectural opening includes a roller, an end rail, and a panel rotatable onto the roller and spanning between the roller and the end rail. The panel includes a front sheet, a rear sheet, and a cell spanning between the front and rear sheet. When the front sheet is at a first position relative to the rear sheet, the cell is open. When the front sheet is at a second position relative to the rear sheet, the cell is closed. |
