既有线论文：既有线大跨度框构桥设计实例_论文写作指导_博硕教育网 关键词】既有线；框构桥；顶进 [gap=502]Key words】Existing railway;Frame-shaped Bridge;Jacking
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survey of existing railway 既有线测量 ; 旧线测量 ; 既有线丈量
resurvey of existing railway 线路复测
repetition survey of existing railway 线路复测 ; 既有线复测
existing railway steel bridges 既有铁路钢桥
Existing railway tunnels 既有铁路隧道
existing railway lines 铁路既有线
existing railway curve 既有铁路曲线
Though the study of GBRLIE is aimed to new railway design,the results can be used to solve design problem concerning reconstruction or double-tracking existing railway by improving. They also can be used to road location.
研究是针对新建铁路设计的,研究成果经改进可用于增建二线及既有线改建设计,也可用于公路路线设计系统开发。
参考来源 - 基于GIS的铁路选线系统智能环境建模方法研究Along with China's rapid growth in economic, the demand for transport is increasing greatly, the supply capacity of existing railway lines is far from meeting the needs of volume growth.
随着社会经济的发展,铁路运输需求急速增加,既有铁路的供给能力远远不能满足社会的需求。
参考来源 - 提高货运机车运用效率相关问题研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The existing railway runs through the center of Delft, cutting the city into two pieces.
现有的铁路穿过代夫特市中心，将城市一分为二。
Developing tilting train to increase train speed on the existing railway line is economical and efficient.
在既有线上采用摆式列车技术可以以比较经济的方式提高列车运行速度。
This paper briefly introduces various series, number and main improvement of existing railway electric motor vehicles in Germany.
简要介绍德国铁路现有电力机车动车的各种系列、数量和主要改进。
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