Ключевые слова: arena, background, blue, bucharest, cismigiu, clean, close, cold, competition, empty, floor, frozen, hockey, ice rink surface, iceskating, level, machine, maintenance, outdoor, polish, preparation, professional, recondition, recover, recreation, reflection, renew, repairing, restore, resurfacer, skate, smooth, snow, sport, sweep, vehicle, water, wet, white, winter,