| 摘要 |
<p>A planning aid is produced by the use of a transparent foil which is adhesive on one side, thus providing a surface for the adhesion thereto of planning elements and/or symbols having smooth surfaces, the foil being applied to a sheet containing a pictorial representation. The planning elements and/or symbols may themselves be of foil structure or of plastics-coated cardboard or the like. For the purpose of providing a permanent record of the juxtaposition of the planning elements and/or symbols to the pictorial representation, the surface with said elements and/or symbols adhering thereto may be photocopied.</p> |
