Ключевые слова: affiliation, analysis, analyzing, aquarelle, background, biology, blood, boold, chemical, chemistry, composition, concept, decoration, determine, doctor, drawing, drive, drop, dropper, element, experiment, expertise, gloves, group, grouping, hand, health, hospital, human, inspection, lab, laboratory, medical, medicine, method, nobody, paint, people, pipette, polluting, preparation, professional, red, research, science, scientific, shah, shape, spilling, spotted, test, whole,