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根据1964年7月武昌“鉄路电力专业会議”商定,1964年12月1日至8日在兰州召开了隧道照明討論会。出席会議的有铁道部第一、第三、第四設計院,鉄路专业設計院,鉄道科学研究院地下铁道研究室,北京、成都、西安、柳州、兰州铁路局等十个单位。应邀的有水电部西北水电勘測設計院等兄弟单位的代表参加。各参加单位都备了很多資料,在会上宣讀的有下列几篇: 1.西安局:关于宝凤段隧道照明大修情况。 2.鉄道部第三設計院:硬聚氯乙烯塑料試用于隧道内电力配綫。 3.水电部西北水电勘测設計院:关于水电站潮湿、振动、锈蝕处所照明設計。 4.鉄道部第一設計院:
According to July 1964 Wuchang “Kushiro electricity professional conference” agreed, December 1, 1964 to 8 days held in Lanzhou, tunnel lighting seminar. The first, third, and fourth design institutes of the Ministry of Railways, the Kushiro Professional Design Institute, the underground railway research institute of Kodo Science Research Institute, and ten units including Beijing, Chengdu, Xi’an, Liuzhou and Lanzhou Railway Bureau attended the meeting. Invited by the Ministry of Water Power Northwest Hydropower Survey and Design Institute and other units attended the brothers. The participating units are prepared a lot of information, at the meeting read the following articles: 1. Xi’an Bureau: Baofeng tunnel lighting overhaul situation. 2. Department of Road, Third Design Institute: PVC plastic test for power distribution within the tunnel. 3. Ministry of Water Power Northwest Hydropower Survey and Design Institute: Hydropower Station wet, vibration, rust lighting design. 4. Ministry of Roads First Design Institute: