日本关门隧道、青函隧道都是典型的矿山法施工的隧道。
Kan-Mon Tunnel and Sei-Kan Tunnel in Japan are typical tunnels constructed by mining method.
这将超过地球上两个最长的海底隧道青函隧道和英法隧道的长度总合。
This would exceed the combined lengths of the two longest undersea tunnels on Earth, the Seikan tunnel and the Channel tunnel.
独特之处： 坐落在787英尺的海平面下的青函隧道是世界上最深的隧道。
Why It's Unique: At 787 feet below sea level, theSeikan Tunnel is the deepest tunnel in the world.
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