科学家大幅度地提高了一种很有希望的超导材料的电流运载能力。这项成果有可能为制造低价、高效的输电线铺平道路。 这种新材料的电流运载能力比其前身提高了5倍，但研究人员目前只是用这种材料做成了一个横截面积为3cm２的小圆盘。他们正在增加它的长度，使之成为真正的输电线 Scientists have dramatically increased the current carrying capacity of a promising superconducting material. This result has the potential to pave the way for the manufacture of low-cost, high-efficiency transmission lines. The new material has five times more current carrying capacity than its predecessor, but researchers are currently using only this material to make a small disc with a cross-sectional area of ​​3cm2. They are increasing its length to make it a real power line