Ключевые слова: background, bottleneck, button, can, chemical, chemistry, clip, color, colorful, cone, container, contour, design, emblem, equipment, experiment, filled, filling, filter, filtered, filtering, flat, fluid, funnel, icon, illustration, instrument, isolated, laboratory, line, linear, lineart, liquid, neck, object, outline, pictogram, shape, sign, silhouette, simple, spout, symbol, tool, water, watering,