| 摘要 |
The arrangement (1) has three sets of marking strips (6, 7, 8, 6', 7', 8', 6'', 7'', 8'', 9'') provided on an upper side (5) of each of a set of panels (2). Marking strip ends (7a, 8a, 6b, 7b, 8'a, 7'a, 8'b, 7'b, 6''b, 8''a, 7''a, 7''b, 6a, 8b, 6'a, 6'b, 6''a, 9''a) are arranged at both longitudinal edges (3a, 3b) and at both transverse edges (4) of the panel respectively. The marking strip ends are arranged at the edges such that the strip ends (7'a, 6''b, 6''a) face the adjacent panel during parallel shifting of the panels in association with each of the marking strip ends (6b, 7b, 6'b). |
