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Ключевые слова:
attract, attraction, attractive, black, coercion, concept, density, design, dipole, electric, electromagnetic, energy, ferromagnetic, field, flux, force, graphic, horseshoe, icon, illustration, iron, isolated, line, magnet, magnetic, magnetism, metal, negative, north, object, outline, physics, polarity, pole, positive, power, pull, rare, school, science, shape, sign, south, symbol, technology, thin, waves,