Ключевые слова: barrel, blue, business, chemical, chemistry, container, crude, crude oil, cylinder, drum, ecology, energy, environmental, factory, fuel, gallon, garbage, gas, gasoline, hazard, hazardous, horizontal, industrial, industry, liquid, manufacturing, metal, no people, oil, old, outdoor, pallet, petroleum, poisonous, pollution, power, risk, safety, stack, stacked, stacking, steel, storage, tank, toxic, urban, warehouse, waste,