大秦线重载直达运煤专线在1987年以后通车，前后双机车同步，获得国家科技进步奖很多项。

来源: 老生常谈12 于 2025-04-24 14:48:22 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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