As part of the plan , they had to begin with the engineering design for the tracks throughout the city 按照计划，首先要著手进行整个城市铺轨的细部设计。
3.
The pd3 rails made in china and uic900a rails made in france are welded into 250m long rail by contact weld 在铺轨基地采用接触焊将pd3轨和法国uic900a轨焊接成250m长轨。
4.
The process of beam is analysised in detail . last , it give a brief introduction of the operation include bean erection 最后，简要介绍了架铺机的操作规程，其中包括架梁与铺轨。
5.
( 3 ) lay of long rail , including the research of desigd and process of ntc rail - lay equipment made in american htt co . ( 3 )长轨铺设。美国htt公司的ntc型铺轨设备配套的轨枕运输车的设计加工及作业流程的研究。
6.
Abstract : main construction method of seamless railway at home and abroad is introduced . construction method of railway laying machine model pk1 - 20es ， svm1000 ， svm1000s and tcm60 is compared each other . long railway laying machine ntc which was used at qing - shen passenger seamless railway is described in detail 文摘:介绍了国内外无缝线路施工的主要方法，对pk1 - 20es型铺轨机、 svm1000及svm1000s型铺轨机以及tcm60型铺轨机施工方法作了比较，并结合秦沈客运专线无缝线路施工对ntc型长钢轨铺设机的应用作了较详细介绍。
