Ключевые слова: alarm, ambulance, ax, axe, badge, black, blade, building, cabinet, contour, department, electric, emergency, energy, equipment, extinguisher, fire, firefighter, fireman, fish, flasher, handle, hat, hose, icon, illustration, isolated, lamp, light, line, linear, object, outline, police, protection, reel, rescue, safety, security, service, set, silver, station, tool, truck, uniform, water,