Ключевые слова: aluminum, ancient, antique, background, battery, bright, bulb, care, clinic, concept, doctor, electric, electricity, emergency, equipment, flash, flashlight, health, healthy, heartbeat, historic, hospital, idea, iron, laboratory, lamp, lantern, life, lifestyle, light, medical, medicine, metal, metallic, night, object, occupation, old, past, pile, pocket, power, professional, retro, science, security, shabby, specialist, stethoscope, still, study, surgeon, table, test, textured, tool, torch, vintage, wisdom,