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 .
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 .
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。
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