一三九厂和三○三研究所坚持厂、所结合和工人、干部、技术人员三结合的原则,用四个多月的时间,将一台X52型立式铣床改装为三坐标液压仿形铣床,经调试、试用,性能良好。所采用的仿形头是三○三研究所和三二七七厂共同研制的3-YZF-1型三坐标液压自动 One thirty-nine factory and three hundred and three Institute adhere to the factory, combined with the workers, cadres and technicians, the principle of combining the three, with more than four months, a X52 vertical milling machine converted into three coordinate hydraulic contouring Milling machine, commissioning, trial, good performance. The use of the first profile is three hundred and three research institutes and three two seven seven factory jointly developed 3-YZF-1 type three-coordinate hydraulic automatic