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1975年4月铁道部科技委和机辆局在哈尔滨铁路局林口机务段召开东北地区蒸气机车改装扁烟筒技术座谈会。参加会议的有东北五个铁路局、铁道科学研究院、太原铁路局、柳州铁路局的有关同志。会议根据毛主席关于学好无产阶级专政理论,还是安定团结为好和把国民经济搞上去的三项重要指示精神,认真总结了蒸气机车改装扁烟筒工作,研究商定了下一步工作安排,并进一步落实1974年交科技字1138号“关于推广蒸气机车扁烟筒的通知”要求。根据这次座谈会讨论的意见,决定对前进型九孔扁烟筒定型方案重新作起,首先进行九孔,七孔对比试验,从中选优定型。对解放型机车七孔扁烟筒定型方案在运用中进一步考验,当前要抓紧主攻前进、FD型,兼顾建设型机车扁烟筒的选型、定型工作,为明年大面
In 1975 April the Ministry of Railways Science and Technology Commission and the Bureau in Harbin Railway Bureau Linkou locomotive depot northeast region steam locomotive conversed flat chimney technology forum. The meeting was attended by five railway authorities in Northeast China, the Academy of Railway Science and Technology, the Taiyuan Railway Administration and the Liuzhou Railway Administration. Based on Chairman Mao’s theory on learning dictatorship of the proletariat, the three important instructions of stability and unity and promoting the national economy, the conference conscientiously summed up the work of retrofitting flat chimneys for steam locomotives, studied and agreed on the next work arrangement, and further implemented In 1974 to exchange science and technology word 1138 “on the promotion of steam locomotive flat pipe” requirement. According to the discussion of the symposium, we decided to re-start the stereotypes of nine-hole flat-fuming chimneys. First, a nine-hole and seven-hole comparison test was conducted to select the proper type. On the liberation of locomotive seven holes flat tube chimney program in the use of further tests, the current should pay close attention to the main forward, FD-type, taking into account the selection of construction locomotive flat chimney, stereotypes work for the next year, large