Ключевые слова: air, airseparating, architecture, argon, blue, building, business, chemical, chemistry, column, construction, copy, cryogenic, ecology, engineering, equipment, factory, gas, gasrefinery, heavy, industrial, industry, liquefaction, liquid, metal, metallic, nitrogen, oxygen, pipe, pipeline, plant, plug, pollutant, processing, producing, production, refinery, separating, separation, shiny, sky, space, steel, storage, tank, technical, technology, tube, unit, warehouse,