Ключевые слова: art, atom, atomic, background, biology, business, chemical, chemistry, contour, danger, electricity, energy, equipment, experiment, fire, flask, formula, glass, high, icon, illustration, infographic, isolated, lab, laboratory, lightning, line, linear, lineart, liquid, medicine, molecular, molecule, outline, power, research, risk, safety, science, scientific, sign, stand, structure, symbol, test, triangle, tube, voltage, warning,