Ключевые слова: art, biology, chemistry, color, colorful, concept, contour, discovery, doctor, education, enlarge, equipment, experiment, flat, graphic, hospital, icon, illustration, instrument, isolated, lab, laboratory, lens, line, linear, lineart, macro, magnify, medical, medicine, micro, microbiology, microscope, outline, research, school, science, scientific, scientist, sign, simple, symbol, technology, test, virus, zoom,