Ключевые слова: abstract, art, atom, background, beaker, bio, biology, chemical, chemistry, concept, connection, contour, design, dna, education, element, experiment, flask, glass, glassware, graphic, icon, illustration, isolated, knowledge, laboratory, library, line, linear, lineart, liquid, literature, medical, medicine, model, molecular, molecule, open, outline, research, science, shape, sign, structure, symbol, technology, textbook,