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1962年9月9日，台湾国民党空军1架美国U一2型高空侦察机从2万米高空窜入大陆进行侦察，被我军地对空导弹击落。此次战斗开创了中国空军首次击落U一2高空侦察机的模范战例,同时也成为我国PVB胶片制造工艺的发轫之作.但利用传统方法研制出的PVB胶片生产工艺成本高、产量小，不适于民用。目前，世界PVB胶片先进生产工艺是挤出法，法国人罗伯特·迪盖特博士将它引进了中国。他为中国所做的一切工作都没有报酬。1997年邹家华副总理亲自向他颁发中华人民共和国友谊奖。
On September 9, 1962, an U-2 reconnaissance aircraft of the U.S. Kuwaiti Air Force fled into the mainland from 20,000 meters to conduct reconnaissance and was shot down by our surface-to-air missiles. The battle pioneered the Chinese Air Force for the first time shot down U-2 high-altitude reconnaissance aircraft model cases, but also become China’s PVB film manufacturing process made a fortune, but the use of traditional methods developed PVB film production cost is high, the output is small, not suitable For civil use. At present, the advanced production technology of PVB film in the world is the extrusion method, and the French Dr. Robert Di Geit introduced it to China. He did not pay anything for what he did for China. In 1997, Vice Premier Zou Jiahua personally presented him with the Friendship Award of the People’s Republic of China.