At the beginning when they designed the Channel Tunnel. Now,

來源: 妖妖靈 於 2024-02-18 09:07:13 [] [博客] [舊帖] [給我悄悄話] 閱讀數 : (5785 bytes)
How many rails are in the Chunnel?
 
two rail tunnels
 
The Chunnel actually comprises three tunnels: two rail tunnels, used for freight and passenger trains, and a service tunnel.

所有跟帖： 

• As shown, Holland Tunnel is diff. It only has 2 tubes. -唐宋韻- ♂ 給 唐宋韻 發送悄悄話 唐宋韻 的博客首頁 (0 bytes) () 02/18/2024 postreply 09:11:13

• At the very beginning, it was very creative to have the idea -妖妖靈- ♀ 給 妖妖靈 發送悄悄話 妖妖靈 的博客首頁 (0 bytes) () 02/18/2024 postreply 09:16:35

• of a 2-rail design instead of a single-rail one. -妖妖靈- ♀ 給 妖妖靈 發送悄悄話 妖妖靈 的博客首頁 (0 bytes) () 02/18/2024 postreply 09:17:59

• Channel Tunnel, even for train, is too long to ignore ventin -唐宋韻- ♂ 給 唐宋韻 發送悄悄話 唐宋韻 的博客首頁 (0 bytes) () 02/18/2024 postreply 09:17:44

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