| 摘要 |
<p>The surface (S) of each of panel units (24a - 24d) constituting an operation display panel (20) is a rectangle whose vertical and horizontal dimensions are integral multiples of a predetermined reference dimension (L). The panel units (24a - 24d) are so arranged that the surfaces (S) are adjacent to each other and an overall surface (AS) which consists of all the surfaces (S) of the panel units (24a - 24d) is a rectangle whose vertical and horizontal dimensions are integral multiples of the reference dimension (L). The panel units (24a - 24d) can be rearranged easily.</p> |
