中國橋隧比真高，有一個隧道27公裏！這個16公裏。

來源: Royale2020 於 2023-01-15 06:45:54 [檔案] [舊帖] [給我悄悄話] 閱讀數 : (623 bytes)

本帖於 2023-01-15 06:46:31 時間, 由普通用戶 Royale2020 編輯

The high-speed railway from Xi 'an to Chengdu(658km), with 127km tunnels crossing the Qinling Mountains(135km). It takes 3-4 hours to arrive, saving 11-12 hours of travel time compared with the old railway.
This is the longest tunnel, 15.99km. pic.twitter.com/ujiXAw2r51
— Sharing travel (@TripInChina) January 14, 2023

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