摘要
介绍了ＺＹＪ７型电液转辙机的特点及技术改进和工艺质量控制，并提出了养护使用时应注意的事项。
The characteristics,technological innovation and technology quality control of ZYJ7 electrohydraulic switch machine is introduced in this paper,and the issues in the maintenance are put forward .
出处
《铁道通信信号》
1998年第1期7-10,共4页
Railway Signalling & Communication
