Ключевые слова: bottled, bottles, caution, chemical, chemist, chemistry, color, compressed, cylinder, dangerous, deliver, domestic, element, environment, exclamation, explode, explosion, explosive, flammable, fuel, gas, health, heating, industrial, industry, inflammable, laboratory, law, old, orange, personnel, pressure, protect, protection, refill, regulations, restricted, reusable, safety, science, scientific, scientist, truck, used, winter, yellow,