Ключевые слова: barrel, blue, chemical, chemistry, color, commercial, container, cylinder, dirty, drum, ecology, empty, environment, equipment, factory, fuel, gallon, garbage, gasoline, hazardous, household, industrial, industry, liquid, material, metal, nature, oil, outdoor, outdoors, package, pattern, pile, plastic, poison, pour, power, sea, site, sky, stockpile, storage, tank, technology, toxic, transport, transportation, warehouse, waste, water,