Ключевые слова: adult, analysis, background, beaker, biology, biotechnology, care, chemical, chemist, closeup, coat, development, discovery, doctor, equipment, experiment, flask, glass, head, health, healthcare, hospital, lab, laboratory, liquid, look, male, medical, medicine, microbiology, microscope, people, pharmaceutical, profession, professional, research, safety, scientific, scientist, smile, student, study, team, technician, technology, test, tube, white, work, worker,