太阳能道口信号鉴定会自1983年9月8～11日在玉门召开。会上由研制试验小组作了研制总结报告,维修单位介绍了使用经验。全体与会人员到大草滩、卅里井两处道口实地考察了设备状况。附图为卅里井太阳能 Solar crossing signal identification since September 1983 8 to 11 held in Yumen. At the meeting by the research and development team made a summary report, the maintenance unit introduced the use of experience. All the participants to the beach on the beach, two wells 卅 wells in the field visited the equipment status. The picture shows Yakai solar energy