Ключевые слова: architectural, background, block, building, business, cement, compress, concrete, construction, contractors, development, dig, engineer, equipment, excavator, floor, footing, heap, heavy, industry, infrastructure, land, level, machine, material, occupation, outdoors, pile, plank, pole, post, precast, preparation, projects, shape, soil, stack, stake, steel, structure, support, surface, track,