Ключевые слова: air, architecture, basement, building, construction, duct, ducting, electric, electricity, energy, engineer, engineering, equipment, facility, factory, fire, industrial, industry, install, interior, iron, line, metal, pipe, pipeline, pipes, piping, plant, power, power duct, pump, red, setup, steam, steel, system, systems, technology, tube, valve, ventilation, water, wet,