一九七九年六月二十日至二十一日由局科委办、电务处、牡丹江分局共同主持,在横道河子电务段召开了关于臂板信号机利用硅太阳能电池做电源的点灯装置的技术鉴定会议。参加会议的有局安全监察室、科研所,牡分局运输、计划、电务科,安全监察室,林口、北安、富锦、牡丹江、横道河子电务段,穆棱、林口、横道河子车务段,牡丹江、一面坡机务 Co-chaired by the Bureau of Science and Technology, Electricity Department and Mudanjiang Branch from June 20 to January 20, 1979, the company held a seminar on the use of silicon solar cell power supply Lighting device technical appraisal meeting. Attending the meeting were the safety supervision room, research institute, branch transportation, planning, electricity department, safety supervision room, Linkou, Bei’an, Fujin, Mudanjiang, Hengdaohezi, Muling, Linkou, Hengdaohe Sub-service section, Mudanjiang, side slope maintenance