Ключевые слова: abstract, acid, background, biotechnology, calm, chemical, chemistry, closeup, desk, dirty, education, empty, equipment, female, flask, glass, health, home, hospital, interior, isolated, lab, laboratory, liquid, medical, medicine, modern, nobody, old, operating, pattern, pharma, pharmaceutical, pharmacy, photo, place, precision, rain, research, room, science, scientist, stains, table, technology, university, used, white, work, workplace,