Ключевые слова: abandoned, bridge, building, cement, coal, concrete, construction, conveyor, crusher, crushing, dust, energy, environment, equipment, excavation, expression, factory, granite, gravel, grinder, heavy, industrial, industry, iron, landscape, line, machine, machinery, manufacturing, material, mine, no person, outdoors, pit, plant, pollution, production, quarry, rock, rust, rusty, sand, sky, steel, stone, technology, transportation, transportation system, velo,