玻利維亞山城鐵路中國齒軌技術突破！坡度達80‰仍穩如平地，瑞士方案因成本過高被棄#中國#工程#基建#重工#硬核#高鐵
基建密碼
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November 14, 2025
基建密碼
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鋼筋水泥之下， 藏著怎樣的智慧與熱血？ 【基建密碼】解碼中國工程背後的 設計、決策與人性光輝。 從橋樑到隧道，從高鐵到大壩， 每一寸進展，都是時代的註腳。 https://www.youtube.com/channel/UCBJd66_CrJJvsUFlQ_BM1WQ
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