Ключевые слова: apartment, bolt, chemical, chemistry, clear, close, closed, color, connection, construction, control, crane, distribution, energy, engineering, equipment, faucet, fuel, gas, home, horizontal, household, industrial, industry, iron, metal, natural, open, pipe, pipeline, piping, power, pressure, residential, rusty, screw, steel, structure, technology, tube, valve, vent, wall, white, yellow,