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发展背景1.最初的技术引进及发展最初的技术引进,是由于抗日战争时期飞机发动机需要制造弧齿锥齿轮的技术,在前机械工业部陶亨咸副部长和前机械工业部总顾
Development background 1. The initial introduction and development of technology The initial introduction of technology was due to the technology required by aircraft engines to manufacture spiral bevel gears during the Anti-Japanese War. In the former Vice Minister Tao Hengxian and former Ministry of Machinery Industry General Counsel