Ключевые слова: added, attached, blueprint, business, climb, concept, construction, design, escape, figure, graphic, growth, high, housekeeping, icon, illustration, implement, improvement, instrument, inventory, ladder, mesh, model, object, poly, polygon, sign, staircase, stairs, stairway, step, stepladder, stick, symbol, tool, up, vertical, wire, wireframe, wood, wooden,