调查了铁路列车运行速度的规律。
The regular of the velocity of moving trains has been studied.
随着列车运行速度的提高，对接触网系统可靠性的要求也越来越高。
With the increasing of the speed of train, high reliability of the contact system is required.
提高旅客列车运行速度、缩短旅行时间是世界各国铁路亟待解决的问题。
It is urgent to increase the running speed of trains and short travelling time of passengers in the development of railway transportation.
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。
Developing tilting train to increase train speed on the existing railway line is economical and efficient.
深入探讨了自然风速分布和列车运行速度对磁悬浮列车横风气动力特性的影响。
The influences of natural wind speed distribution and train running speed on the aerodynamic characteristics of the maglev train under crosswinds are probed in details.
无缝道岔是跨区间无缝线路的重要组成部分，能显著提高列车运行速度和平稳性。
The jointless switch is an important component part of jointless track across sections, it can notably raise the train running speed and the regularity.
列车运行速度对振动速度、振动加速度的影响比对动应力、动变形的影响更显著。
Train velocity has little influence on the dynamic stress and dynamic deformation of subgrade bed, but has obvious influence on vibrating velocity and vibrating acceleration.
随着我国列车运行速度的不断提高，铁路运输对行车调度指挥系统提出更高的要求。
With the continuous rise of train operation speed, railway transportation rendered higher demand for TDCS.
隧道埋深、地铁列车运行速度、荷载频率、隧道衬砌弹性模量等因素对地面振动有极大的影响。
Tunnel depth, subway train speed, loading frequency, tunnel lining elastic modulus and other factors have great impact on the ground vibration.
经过五次提速我国铁路开始融入了世界既有铁路提速浪潮，缩短了与发达国家既有线列车运行速度的差距。
The disparities of train speeds in existing line with developed country have been shortened through five times speed-up in the railway of our country.
列车系统的动力学性能不仅直接关系到列车运行速度能否提高，而且影响到列车的乘坐舒适性和运行安全性。
Therefore, a series of research tasks emerge from it. The dynamic performance of train system not only affects the increase of speed, but also the ride comfort and running safety.
分析结果表明，接触导线线质、张力和刚度以及列车运行速度、波动传播速度和抬升力是影响导线疲劳可靠性的主要因素。
Analyses results show that the materials, tension and rigidity of wires, speed of trains, wave speed, and lift forces are primary factors that affect fatigue life of contact wires.
在铁路沿线选择几个测点，实际测量了一千多个列车运行速度的数据，并根据铁路列车运行图计算统计了各测点的运行速度。
We have selected some surveying places along the railway line and surveyed over one thousand velocity data of trains in motion. Besides, According to the plan of running trains is used.
为分析弹性钢轨扣件轨道的轮轨作用力，通过建立地铁车辆弹性扣件动力分析模型，分析了扣件刚度、列车运行速度等对轮轨作用力的影响。
This paper sets up a dynamic analysis model of subway vehicle-elastic fastener and analyzes the influence of fastener stiffness, train operation speed on the wheel-track force.
接触网不平顺是影响受电弓与接触网接触受流性能的主要原因之一，对列车运行的安全性、平稳性和舒适性都有着重要影响，也是限制列车运行速度提高的主要因素。
The catenary's irregularity is the main factor that influences the quality of pantograph-catenary current collection, the safety, the stationary, the conformability and the velocity of the vehicles.
高铁运行的速度超过每小时250公里，大约是普通列车正常运行速度的两倍。
High-speed rail train runs at over 250 km per hour, about twice the normal speed of a regular train.
实际上，列车的运行速度更多的是在150英里/小时的范围内。
旅客、货物离开铁路而改用其他方式运输的一个重要原因，就是铁路列车的运行速度低。
An important reason passenger and goods left the railway and used other ways are the operation of the railway train is low in speed.
分析认为影响因素有列车最小运行间隔时间、最高运行速度、列车制动性能和加速性能、沿线车站到发线长度。
Factors affecting the speed include the minimum headway of trains, the maximum speed, train brake performance and acceleration and the arrival and departure track length of stations along the line.
本文阐述了应用微型计算机计算列车在施行电阻调速制动时，运行速度和运行时间的计算原理和方法。
The paper describes the principle and ways of calculating running speed and running time of trains with resistance control braking by microcomputer.
运行速度是影响铁路列车运行噪声特性的重要因素之一。
Train running speed is one of the important factors affecting railway noises.
随着新一轮的火车速度的提高，北京与广州间的客运列车以及其他重要的铁路线上的客车将提高运行速度-每小时200公里。
With the new round of speed hikes, passenger trains traveling between Beijing and Guangzhou, and on other key rail routes, will upgrade their speed to a record high of 200 kilometers per hour.
本文根据四大干线的技术条件，论证了提速客货列车的牵引质量，运行速度，行车密度间的合理匹配。
Based on the technical conditions of the four major trunk lines, this article demonstrates the rational match between hauled weight, operating speed and traffic density.
研究表明：以头车轮重减载率作为列车运行安全性指标时，得到的列车最高安全运行速度最小；
The critical speed of high-speed train is studied according to the heading car's safety index.
然后根据风载荷与风速之间的函数关系，得到基于车辆倾覆稳定与轮重减载方面的列车安全运行速度限值。
In the end the relation between the train speed and side-wind speed is specified in the limit of pressure on the Windows of cars.
然后根据风载荷与风速之间的函数关系，得到基于车辆倾覆稳定与轮重减载方面的列车安全运行速度限值。
In the end the relation between the train speed and side-wind speed is specified in the limit of pressure on the Windows of cars.
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