碳滑板是电力机车关键零部件，目前我国高速电力机车滑板绝大部分从国外进口。
Slide is the key component on the electric locomotives. At the present time, most of high-speed electric locomotives slides are imported from overseas.
风力发电机、高速电力机车用牵引电机等，为达到大功率、小体积的使用效果，广泛使用高导电性和高强度的铜合金。
Copper alloy with high conductivity and high strength is widely used for wind mill generator and pulling motor used for electric express locomotive to reach to high power and small in size.
KZ4A型交流传动电力机车用于哈萨克斯坦国家铁路干线高速客运。
Type KZ4A AC drive electric locomotive is designed for national high-speed railway in Kazakhstan.
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