Ключевые слова: alcohol, barrier boom, barrier gate, bucket, business, care, chemical, chemical container, close, closeup, concept, cover, danger, dangerous, emergency, engine, environment, ethyl, fire, flame, flammable, flammable sign, fuel, gas, gasoline, hazard, hazardous, hazardous chemicals, hazardous to the environment, health, laboratory, lid, liquid, lorry, material, methyl, object, off, oil, protect, protection, red, risk, safety, sign, single, stop, tank, warning,