Ключевые слова: air, architecture, basement, building, ceiling, cement, concrete, construction, cooling, dirty, drains, duct, electric, electrical, electricity, energy, engineering, facility, factory, garage, gas, heavy, industrial, industry, infrastructure, interior, iron, line, manufacturing, metal, oil, perspective, pipage, pipe, pipeline, piping, power, row, rusty, steam, steel, structure, supply, systems, technology, tube, tubing, valve, water, zinc,