Ключевые слова: abstract, aperture, armature, background, block, building, cement, closeup, concrete, construction, edge, frame, gray, grey, ground, heap, hole, hollow, industrial, industry, material, monolith, new, opening, orifice, outtake, panel, pile, plank, raft, rectangular, reinforced, reinforcement, rock, rough, shaft, site, slab, slot, stack, stone, surface, texture, urban, vent, ventiduct, ventilating, ventilation, ventilative, wall,