| 摘要 |
<p>Information sign (1) has two sloping or bent sides (2) and at least one of the facing sides (3) contains writing and/or a pictogram. The facing sides are many-sided, typically triangular. The writing and/or pictogram is contained in a pointed corner of the front side. It may be a traingular prism and may warn of steps going up or down.</p> |
