| 摘要 |
<p>The unit has a set of spacers connected to two longitudinal units and peripheral parts braced against a self-adapting longitudinal structure in such a manner that the parts adapt the motions of the structure. Transverse units forming a support surface extends transversely over the width of the unit and is secured to the parts. A pivot axis of a pivotable connection is located in front of a support structure formed by the units.</p> |
