Ключевые слова: algarve, billboard, blue, bulldozer, crystal, digger, environment, equipment, europe, evaporation, evaporation pans, excavator, extraction, factory, farm, field, floodgate, food, harvest, heap, industrial, industry, landscape, light, machine, machinery, mine, mineral, ocean water, pond, ponds, portugal, production, salines, salt, salt extraction, salt farm, salt industry, salty, sea, sea salt, sea water, shallow water, tradition, traditional, water,