Ключевые слова: alcohol, business, care, chemical, chemical container, danger, dangerous, emergency, engine, environment, ethyl, fire, flame, flammable, flammable sign, fuel, gas, gasoline, glove, hand, hazard, hazard sign, hazardous, hazardous chemicals, health, label, laboratory, lid, liquid, lorry, material, methyl, object, oil, open, prevent, protect, protection, red, risk, safety, sign, single, stop, symbol, tank, toxic symbol, warning, warning symbols,