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(21)第一条电气化铁路1975年7月1日,长达676公里的宝成铁路电气化工程建成通车,货物通过能力比电气化以前提高一倍以上。
(21) The First Electrified Railway On July 1, 1975, the electrification project of Baocheng Railway, which is 676 kilometers long, was completed and opened to traffic. Its cargo passing capacity has more than doubled as before.