英语翻译我国未来铁路客流量大、集中、行程长，这正是高速铁路优势所在，也是高速公路和民航都难以胜任的。随着运输要求的不断增

英语翻译
我国未来铁路客流量大、集中、行程长，这正是高速铁路优势所在，也是高速公路和民航都难以胜任的。随着运输要求的不断增长，铁路客运专线的优势越来越显著，因此客运专线轨道设计具有重要意义。该客运专线位于济南地区，铺设跨区间无缝线路，其中曲线段曲线半径为7000m;设计荷载高速采用中ZGS型机车，中速采用 型机车。
首先对轨道结构各组成部分(钢轨、轨枕、扣件、道床等)进行选择，并在此基础上进行强度检算，最终选用60 无螺栓孔新轨，定长100m。轨枕为Ⅲ型混凝土枕，采用弹条Ⅲ型扣件，特级道碴。
然后进行无缝线路的设计，根据强度和稳定性要求，确定无缝线路钢轨允许温降幅度和允许温升幅度，综合考虑当地最高轨温与最低轨温，确定路基地段的设计锁定轨温。此外，还对线路两端伸缩区长度及缓冲区预留轨缝进行了计算，对单元轨节长度进行选择，并布置位移观测桩。
最后对设计轨道高度及设计线路所需钢轨、轨枕、扣件、道碴等数量进行计算，并利用CAD绘制轨道布置图。

China's future railway traffic,concentrated,long trip,this is the advantage of high-speed railway,highway and civil aviation are also difficult to competent.With the growing transport demand,the advantages of rail passenger line more significantly,the passenger line track design is of great significance.The passenger line at the Jinan area,laying cross-seamless lines,which curves of the curve radius of 7000 m; design load in the ZGS-use high-speed locomotive,a medium-speed locomotive.
First of all the various components of the structure of the track (rail,sleeper,fastening,bed,etc.) to choose,and this strength on the basis of calculation,the final selection of 60 new tracks with bolt hole,fixed-length 100 m.Ⅲ of concrete sleeper for pillows,use of bombs of the type Ⅲ fastener,premium Ballast.
Then proceed to the design of seamless lines,according to strength and stability requirements,establish seamless rail lines to allow the rate and allowing the temperature drop rate of temperature rise,considering the local maximum and minimum temperature rail tracks temperature,determine the design of roadbed lots locked rail temperature.In addition,the two ends of the line stretching the length and buffer zones set aside for the rail joints,rail unit to choose the length and layout displacement observation pile.
Finally,the design height and design of the track for rail lines,sleeper,fastening,such as ballast to calculate the number and use of CAD drawing layout of the track.