Ключевые слова: barell, barrel, black, can, canister, caution, chemical, container, crude, diesel, drilling, drop, drum, dump, energy, environment, expensive, flammable, flank, fossil, freight, fuel, gallon, garbage, gas, gasoline, hazard, industry, isolated, keg, market, metal, object, oil, petrol, petroleum, poison, pollution, price, protect, safety, steel, storage, substance, tank, toxic, warning, white,