| 摘要 |
<p>The floor unit (30) has parts (31, 32) comprising longitudinal external edges (31a, 32a) provided with transversal profiles, respectively. Longitudinal internal edges (31b, 32b) are formed in the parts, and provided with male reliefs (33) and female reliefs (34), respectively. One of the parts comprising female reliefs is formed with transversal dimension adjustable by a longitudinal cut (35). The transversal profiles of the longitudinal external edges are symmetrical with respect to a vertical longitudinal plane.</p> |
