Track vehicles ' dynamic performance is related to the conditions of trackage closely

轨道车辆动力学性能与 轨道条件密切相关

In this paper rail welding technique of seamless trackage is summarized With a review of the development of rail welding technique in China the quality control standards over welded joint geometric errors is given

无线 局域网中的无缝切换综述了 世界 各国 铁路无缝 线路的钢轨焊接技术，介绍了我国铁路钢轨无缝线路焊接技术的发展情况，并列出钢轨焊接接头几何偏差控制标准

Trackage classified by speed Calculation and Analysis of Speed-Measurement Characteristic Curve of Circuit-breaker

按速度分级的（铁路） 线路断路器速度测量特性曲线的求解分析

A Study of Welding Technology for Seamless Trackage

铁路无缝 线路 钢轨焊接技术的研究

Track vehicles and trackage constitute a system in which they are acting each other . Track vehicles must satisfy the need of dynamic performance only on the basis of given conditions of trackage .

轨道车辆与 轨道 线路是一个相互作用的大系统，轨道车辆必须也只能在一定轨道条件下满足动力学性能要求。

According to the specific engineering geology conditions of-1000m level northern trackage contacting roadway in Qishan Coal Mine the reasons for deformation and failure of support are analyzed . The feasible support schemes for the deep roadway engineering are put forward .

针对旗山矿 -1000m水平北翼 轨道联络大巷的具体工程地质条件，分析了巷道变形、破坏状况及其原因，提出了该巷道工程支护备选方案。

Power Electronics in Implements for Trackage Traction and Navigations

航行器具中的电力电子