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遵照毛主席关于“真理的标准只能是社会实践”的教导,省局根据林业生产发展的需要,基于大石头局,两年来全面使用自制滤芯的实践经验,又于七三年六月指定了露水河、黄泥河等四个局进一步反复试验,经过各局“三结合”科学实验小组,在解放牌汽车,东方红54—75型,KJ—40,50等拖拉机,东风80电站,2105绞盘机等不同型号机械上试用,证明效果良好。于七月三日至八日,在大石头林业局召开的全省林业三项科技成果应用推广经验交流会上,对锯末纸浆机油滤芯生产使用,组织了技术鉴定。经过实物使用的观察,技术报告的审
In accordance with Chairman Mao’s teaching that “the standard of truth can only be a matter of social practice”, the provincial bureau, based on the needs of forestry production development and based on the boulder bureau’s practical experience of fully using self-made filter elements in the past two years, was designated again in June 1973 Lukeshui, Huang Naihe and other four offices further trial and error, after the Bureau “three combination” scientific experiment group, in the liberation of cars, Dongfanghong 54-75, KJ-40,50 and other tractors, Dongfeng 80 Power Station, 2105 winch Machine and other different types of mechanical trial, proved effective. From July 3 to August 8, at the exchange meeting on the application and promotion of the three scientific and technological achievements in forestry across the province held by Dashiushi Forestry Bureau, technical appraisals were organized for the production and use of sawdust pulp filter. After the actual use of the observation, the technical report of the trial