equipment used for turnout switching and locking,as well as for monitoring the position and stateof the turnout,which includes switch machine (electric,electro-hydraulic,electro-pneumatic switchmachine),switch-and-lock mechanism,switch closure detector,ex (共 299 字) [阅读本文] >>


说明: 本文档由创作者上传发布,版权归属创作者。若内容存在侵权,请点击