研究了稀土对电气铁路电车线用纯铜硬度、导电性、 耐磨性、耐蚀性的影响。结果表明，随稀土加入量的不同，上述性能都有一定程度的变化。

This paper studied the effects of rare earth elements on the properties(such as hardness, electrical conductivity and resistance to corrosion)of pure copper used in touching wire of electric railway.

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