| 摘要 |
<p>The cultivating building screen operating rods are at a level above the screens. The screens are retained by bottom and top wires, which stretch from joist to joist. The building (1) covers cultivating the soil area (4) and includes foundation columns (2), joists (3) and transverse gutters (5,6) resting on column supports (7). Between the gutters are roofs (9) fitted with thin metal profiles (10) and glass panes (11). Two electric motors (14) drive, via a gear box (15), drive spindles (16) which, via gear a drive (12) move operating rods. All left and right window panes have separate drive spindles. An electric motor (18) with screen drive (19) rests on a support (73).</p> |
