Ключевые слова: arm, barrel, business, canister, cargo, chemical, chemist, chemistry, classification, container, crisis, crude, danger, drop, drum, empty, energy, environment, experiment, fossil, fuel, gallon, gas, gasoline, hand, industrial, industry, keg, laboratory assistant, liquid, metal, oil, oil refining, petrol, petroleum, petroleum products, pollution, power, price, pump, racks, resource, steel, storage, tank, technologist, test tube, toxic, verification, warehouse,