Ключевые слова: air, antifreeze, auto, background, black, blue, car, check, chemical, cool, coolant, cooling, cpu, engine, engineering, equipment, fitting, fuel, hand, illustration, industrial, industry, liquid, maintenance, metal, modern, nitrogen, penergy, pipe, pipeline, plant, power, pump, radiator, repair, service, steam, steel, system, tank, technology, temperature, tool, vehicle, water, work,