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最近,布拉什韦尔曼公司研制出含有铜、少量铍和钴的新合金。该合金的导电性是磷青铜的4倍与其有同样的生产能力。在高温下对应力的张弛显示
Recently, Brashwelman has developed a new alloy containing copper, a small amount of beryllium and cobalt. The conductivity of the alloy is 4 times that of phosphor bronze with the same production capacity. The relaxation of stress at high temperatures is shown