Ключевые слова: analysis, arm, background, biochemistry, biohazard, biology, biotechnology, black, bottle, chemical, chemist, chemistry, clinic, clinical, close up, closeup, container, disease, element, experiment, glass, glassware, glove, gloved, hand, health, hold, human, investigation, lab, laboratory, liquid, male, measure, medical, medicine, pharmaceutical, pharmacy, research, researching, science, scientific, security, sterile, substance, test, test tube, tube, tubing,