Ключевые слова: ampoules, analysis, analyzing, biochemistry, biotechnology, black, chemical, chemistry, clinic, close up, colored, copy space, dark, discovery, equipment, experiment, glass flasks, health, healthcare, hospital, indoors, investigation, lab, laboratory, liquid, medical, medicare, medicine, nobody, objects, pharmaceutical, red, reflection, research, science, scientific, selective focus, substance, table, test, transparent, workplace,