undersea tunnel

Necessity of building sea crossing passage at the Bohai strait is discussed, and then the scheme of south bridge and north tunnel' is studied. Moreover, variety of schemes of undersea tunnel and its construction methods are matched.

论述了修建渤海海峡跨海通道的必要性，研究了海峡通道南桥北隧方案，比较了海底隧道的不同方案及施工方法。

Construction technology of undersea tunnel and the feasibility of Qiongzhou strait tunnel

海底隧道施工技术及琼州海峡隧道方案的可行性

Crossing the Bering Strait in between Russia and Alaska would require about 200km ( 125 miles) of undersea tunnel, the paper said, citing Wang Mengshu, a railway expert at the Chinese Academy of Engineering.

《京华时报》援引中国工程院的铁路专家王梦恕的话说，修建铁路穿过俄罗斯和阿拉斯加之间的白令海峡需要建设大约200公里（125英里）的海底隧道。

Construction Technique of Xiamen Undersea Tunnel across F3 Weathered Trench

厦门海底隧道穿越F3风化深槽施工技术

Britain and France are connected by an undersea tunnel.

英国和法国被一条海底隧道连接起来了.

It took many years to complete the construciton of the undersea tunnel linking Britain and France.

完成连接英国和法国的海底隧道的修建工作花了许多年.