| 摘要 |
<p>The platform (1) includes a pair of end structures (2) which protrudingly extend, on longitudinally opposite sides, from an intermediate portion or structure (3) which comprises a longitudinal inverted-channel formation (4) which extends between transversely intermediate portions of the end structures (2) and a pair of transverse inverted-channel formations (5) which extend on opposite sides from an intermediate portion of the longitudinal formation (4). Each transverse formation (5) is connected to the end structures (2) and to the longitudinal formation (4) by means of a platform portion (6), which joins at the bottom the transverse formation (5) to the longitudinal formation (4), and an inclined plate portion (7), which joins the platform portion (6) to the adjacent end structure (2).</p> |
