遵照伟大领袖毛主席关于“开发矿业”和“教育必须为无产阶级政治服务,必须同生产劳动相结合”的教导,我院矿山系选矿七五(一)班部分工农兵学员,在选矿科研室参加了铜录山矿氧化铜矿小型试验工作。结合 In accordance with the teachings of Chairman Mao on “developing the mining industry” and “education must serve the proletarian politics and must be integrated with productive labor”, Chairman Mao, a great leader, selected some of the workers, peasants and soldiers who were beneficiaries in the 75th (one) Participated in the copper recorded mine copper oxide small pilot work. Combined