Wider spans are more economical and better for the navigation of shipping than shorter ones between piers with deep foundations penetrating the bed of the waterway.
与在河道下深打桥墩基础的短跨距相比，长跨距对航运更好更经济。
Wider spans are more economical and better for the navigation of shipping than shorter ones between piers with deep foundations penetrating the bed of the waterway.
与在河道下深打桥墩基础的短跨距相比，长跨距对航运更好更经济。
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