Ключевые слова: appliance, boiler, bottle, chemical, compressed, connection, connector, construction, control, danger, device, electricity, energy, engine, equipment, factory, fluid, gas, gauge, home, industrial, industry, installation, maintenance, measure, metal, pipe, pipeline, plumber, plumbing, power, power plant, pressure, project, regulator, safe, service, service air, station, steel, supply, sustaining, technology, thermal, tube, used, utility, valve, water, work,