Research methods:The analysis is made for the present situation of catenary of overhead contact wire system and main measures against wear of it.
研究方法：通过对接触网承力索的现状和主要防磨损措施的研究来进行分析。
In this paper, the curve and fabrication length of the main cable which is modelled through catenary elements are calculated with the iterative method.
本文用悬链线单元模拟主缆，通过选代计算了主缆的线形及下料长度。
The catenary suspension furnace for quenching and tempering of the crankshafts has been successfully developed, and thus main heat treatment equipment has been renewed.
研制了用于曲轴调质的悬链炉，从而更新了主要的热处理设备。
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.
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.
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。
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