Ключевые слова: appliance, auto, background, can, canister, cartoon, center, container, diesel, dump, eco, ecology, environment, equipment, flammable, flat, fuel, gallon, garbage, gasoline, graphic, hazard, hazardous, icon, industry, isolated, jerrycan, junk, line, linear, liquid, obsolete, oil, outline, pictogram, pollution, recycling, reservoir, reuse, separation, service, sign, stroke, symbol, tank, technology, transportation, waste, workshop,