| 摘要 |
<p>The structure has a frame for holding movable louvers, and several profiles. The profiles include extended rhomboid section with linking vertices and upper vertices with projections, linking profile with inner end vertex, projection and parallel flat extensions, adjustable receiving profile with flat extensions, links and sides fitted to support, rectangular support profile with small faces extending in flat extensions, and connecting portions for coupling with fixed frame, and mechanical transmission profile for controlling inclination and displacement of louvers.</p> |
