大秦線重載直達運煤專線在1987年以後通車，前後雙機車同步，獲得國家科技進步獎很多項。

來源: 老生常談12 於 2025-04-24 14:48:22 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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