Taking the Qin-Shen line for example,this article gives a description of the technological process of welding & storage of continuous rails in the base,bottom ballast installation,track-laying,field welding,stress release and fastening down of rails and precautions for the construction of one-time CWR track laying on monoblock concrete sleeper
以秦沈线为例,阐述了单枕法一次铺设无缝线路施工工艺中基地焊接长钢轨、长钢轨存放、铺设底碴、铺轨、工地焊接、应力放散及锁定的工艺流程和注意事项。
The paper introduces a method of calculating the time limit for track laying and bridge erecting engineering project, in which several factors are quantized.
本文介绍一种计算铺轨架桥工期的方法，将一些因素数量化，有一定参考价值。
Research purposes: In cause of innovation of existing railway line, sometimes it needs to lay continuously welded rail in minor section, but it is difficult to do it with long-railed machinery, so the method of replacing and laying track with track panel was adopted previously.
研究目的:既有线提速改造时形成小区间无缝线路,利用长轨机械铺设比较困难,以往利用轨排换铺法进行。
Design and Construction Technology of CPG500 Long-Track-Laying Machine;
CPG500型长轨条铺轨机组研制
Track-laying scheme cost analysis of main line viaducts of rail transit;
轨道交通正线高架桥铺轨方案及费用分析
Development and Application of WZ500C Universal-type Ballastless Tracklayer
WZ500C通用型无砟轨道铺轨机的研制及应用
Design and Development of a New Kind of Tracklayer Running Control System
一种新型铺轨机走行控制系统的研制
Research and Design for the Automatic Control System of CPG500 Track Layer
CPG500型铺轨机组自动控制系统设计研究
During the five years, the sector built 5,700 km of railways, 4,100 km of double-tracked lines and electrified 4,300 km of lines.
完成新线铺轨5700公里，增建复线铺轨4100公里，既有线电气化改造4300公里。
The 147-km subgrade in the Golmud-Wangkun section has basically taken shape, and the track-laying base at Nanshankou has been in the main completed, which has paved the way for the start of track-laying next year.
格尔木至望昆段147公里路基已基本成型，南山口铺轨架梁基地已经建成，为明年铺轨奠定了基
Mechanized track laying in parallel with the adjacent existing railway line
既有线增建二线小间距并行地段的机械化铺轨
Construction Technology of Mechanical Pavement & Bridge Erection on Electrical Double-Track Railway;
电气化铁路增建二线机械铺轨架梁施工技术
Design Manufacture and Use of the Bridge Erection Machine Type Changzheng Ⅲ-160;
长征Ⅲ-160型架桥铺轨机设计、制造与使用
rail-form type concrete paver
轨模式混凝土摊铺机
The workers are laying the tracks.
工人们在铺设铁轨。
Construction technology and cost analysis of continuous welded rail(CWL)installed with replacement track-laying method;
换铺法铺设长钢轨施工工艺及造价分析
Research on Automatic Tape-laying Technique for Composites--Calculation Method of Tape-laying Path on Free-form Surfaces
复合材料自动铺带技术研究——曲面铺带轨迹算法
a workman who lays and repairs railroad tracks.
铺设或修理铁路轨道的工人。
They are laying a railroad track.
他们正在铺设一条铁路轨道。
The railway track goes underground for a short distance.
铁轨有一段不长的路程铺设在地下。
Research of Tyre-type Variable Cross Multi-purpose Track-laying Machine
轮胎式可变跨多功能轨道铺设机研制