under-river pipeline crossing 河床下管线穿越
pipeline river crossing 过河管线 ; 管道穿越河流
river crossing of pipeline 管道穿越河流
HDD is often the preferred method for constructing the pipeline across such obstacles as streams or wetlands. (See inset diagram.) Here is shown a typical river crossing.
水平定向钻孔(HDD)常常是管道穿越河流或湿地这类障碍优先选用的方法。插图表示河流穿越的典型情况。
The pipeline construction in west China gas transported to east China project needs pipeline crossing the Yangtze river at Sanjiangkou port.
根据三江口地质、环境特点，决定盾构施工法为西气东输管道通过长江的推荐方案。
West Pipeline crossing Heihe River is the longest crossing project by a large excavation way and the method of laying both crude oil pipeline and products pipeline in a single trench.
黑河是西部管道工程采用大开挖方式穿越的距离最长的河流， 原油与成品油管道采用同沟敷设方式穿越该河流。
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