The characteristics and application effects of various metallic charge for electric arc furnace are presented in this article.
文中介绍了电弧炉用各种金属炉料的特点和使用效果。
Based on the discreteness of electric charge, the influences of an external magnetic filed on the persistent current of the mesoscopic coupling metallic rings a re investigated.
在考虑电荷是量子化的基础上，研究了外加磁场对介观耦合金属环中持续电流的影响。
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