一步一步，沿着清晰的路线，跨越江河，攀登峭壁。
Step by step the paths are cleared, the rivers crossed and the cliffs scaled.
由于处在跨越江河湖海和承力的环境下，主缆必须进行特殊防护。
Being over a river or sea and a stressed condition, main cables must be specially protected.
上海市大连路越江隧道的联络通道是一个处在黄浦江底的长联络通道。
The connectional passages of Dalian road tunnel through river is one long connectional passages underneath Huangpu river in Shanghai city.
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