river-crossing pipeline

基本解釋

Tunnel is a low cost way for crossing river pipeline projects in long-distance, but crossing river cracks are main difficulties in karst areas.
隧道是長輸管道工程中一種成本較低的穿跨越形式，但對(duì)于巖溶發(fā)達(dá)地區(qū)的大型河流，通江裂縫等地質(zhì)條件是其主要施工難點(diǎn)。
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.
本文從河流學(xué)、水文學(xué)、水力學(xué)和地質(zhì)學(xué)的觀點(diǎn)，介紹管道穿越河流的設(shè)計(jì)中需要考慮的因素和設(shè)計(jì)準(zhǔn)則。
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.
桁架式跨河管架的結(jié)構(gòu)優(yōu)化和其可靠度分析，關(guān)系到管架的整體性能，對(duì)管道的安全運(yùn)行有著重要的作用。