Ключевые слова: art, barrier, brick, centimeter, construction, contour, danger, electric, electrical, energy, equipment, glowing, hammer, hurdle, icon, illustration, industry, isolated, length, light, line, linear, lineart, maintenance, measure, measurement, neon, outlet, outline, power, repair, road, ruler, safety, scale, service, sign, socket, spanner, stop, straightedge, street, symbol, tool, traffic, wall, warning, work, wrench,