摘要
本文通过对我国铁路道岔发展的简要回顾及80年代以来新型道岔研制的分析,指出了现有“七五”型道岔的缺陷和新型道岔的优越性,提出我国铁路道岔的发展方向。
By reviewing the development of railway awit-ches in China and analysing the research and devel-opment work of new switches since the 1980s,this paper points out the shortcomings of the old type of switches and the advantages of the new and the de-veloping trend of railway switches in Dhina.
出处
《中国铁路》
1991年第12期16-18,36,共4页
China Railway
关键词
铁路
道岔
发展
线路
single switch, point rail,movable-point frog
