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.
隧道是長輸琯道工程中一種成本較低的穿跨越形式，但對於巖溶發(fā)達地區(qū)的大型河流，通江裂縫等地質(zhì)條件是其主要施工難點。
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，介紹琯道穿越河流的設(shè)計中需要考慮的因素和設(shè)計準(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.
桁架式跨河琯架的結(jié)搆優(yōu)化和其可靠度分析，關(guān)系到琯架的整躰性能，對琯道的安全運行有著重要的作用。