Ключевые слова: abstract, background, barrier, border, building, cellular, cement, concrete, construction, corrugated, defense, design, detachment, dimensional, durability, enclosure, exterior, fence, form, foundation, gray, grunge, honeycombs, industrial, isolated, material, mosaic, old, part, pattern, protection, real, reinforced, sections, separation, site, solid, square, stone, structure, surface, symmetric, symmetry, temporary, texture, textured, urban, vertical, wall, white,