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81年11月中旬、黑龙江省机械局受一机部委托,对我院以下五项科研项目组织并进行了鉴定: 1、650吨板框式水压机研究; 2、凸轮范成加工原理研究;
In mid November 81, Heilongjiang Provincial Bureau of Machinery commissioned by a machine department, organized and identified the following five research projects in our hospital: 1,650 tons of plate-frame hydraulic press; 2,