Ключевые слова: abstract, backdrop, background, barrier, build, cliff, closeup, construction, danger, design, detail, dutch, erosion, exterior, fence, green, grid, hill, iron, landscape, link, macadam, material, mesh, metal, modern, natural, nature, net, netting, object, outdoor, pattern, protection, reinforcement, road, rock, rockfall, safety, security, slope, steel, stone, structure, surface, texture, transportation, wall, wire,