Ключевые слова: background, bottle, bottled, butane, calor, caution, chemical, chemist, chemistry, cooking, cylinder, dangerous, element, energy, exclamation, explode, explosion, explosive, flammable, fuel, full, gas, happy, health, heating, house, industrial, industry, inflammable, laboratory, law, orange, people, personnel, propane, protect, protection, red, refill, regulations, restricted, safety, science, scientific, scientist, storage, tank, white,