Ключевые слова: bottle, bottles, center, centre, cleaner, conservation, container, cylinder, cylinders, danger, depot, disposal, domestic, dump, employee, empty, energy, environment, garbage, gas, gas bottle, industrial, job, junk, labor, liquefied, liquefied petroleum gas, litter, lp gas, lpg, natural gas, objects, old, petroleum, profession, propane gas, recycling, rubbish, rust, safe, safety, scrap, scrapped, station, supply, tank, tanks, waste, work, worker,