Ключевые слова: abstract, atom, atomic, background, bio, biology, biotechnology, cell, chemical, chemistry, color, colorful, concept, connection, contour, design, dna, element, fill, filled, formula, graphic, icon, illustration, isolated, laboratory, line, linear, logo, medical, medicine, micro, model, molecular, molecule, outline, physics, research, science, scientific, shadow, shape, sign, structure, symbol, technology,