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J.M.Lafferty的研究表明,硼化物L_aB_6就其热电子发射而言,是碱土金属或稀土金属MB_4型中最优秀的硼化物。它与钨丝阴极比
J.M. Lafferty’s research shows that the boride L_aB_6 is the best boride in the alkaline earth or rare-earth MB_4 type in terms of its thermionic emission. It is more than tungsten cathode