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铁道部车辆局于11月30日至12月3日,在长沙召开1989年度红外线工作会议。参加会议的有各路局车辆处负责人和红外线专职。生产厂家和第二代红外线研制单位也参
The Ministry of Railways Vehicle Bureau held the 1989 annual infrared working conference in Changsha from November 30 to December 3. Participate in the meeting of all road vehicles and IR Department responsible person. Manufacturers and second-generation infrared development unit also reference