Ключевые слова: abstraction, analyze, beware, biohazard, biologic, bright, chemistry, color, colorful, combination, concept, corrosion, crossing, danger, effect, element, equipment, expertise, flare, flat, frame, glow, hazard, icon, industry, mechanical, mesh, modeling, net, network, options, poison, pollution, research, safety, scattered, science, service, settings, shiny, spot, substance, system, toxic, waste, web, white, zone,