river-crossing pipeline

基本解释

Tunnel is a low cost way for crossing river pipeline projects in long-distance, but crossing river cracks are main difficulties in karst areas.
隧道是长输管道工程中一种成本较低的穿跨越形式，但对于岩溶发达地区的大型河流，通江裂缝等地质条件是其主要施工难点。
From the viewpoint of hydrology, hydrolics and geology, the paper deals with the factors worth consideration in pipeline river-crossing design and the principle of design.
本文从河流学、水文学、水力学和地质学的观点，介绍管道穿越河流的设计中需要考虑的因素和设计准则。
Structure optimization and reliability analysis of truss river-crossing related to the overall performance of pipeline structures. And it plays an important part in structure's safe operation.
桁架式跨河管架的结构优化和其可靠度分析，关系到管架的整体性能，对管道的安全运行有着重要的作用。