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英国皇家飞机公司正对 Scientifica &Cook 电子学公司研制的小型飞机场使用的激光导航系统进行试验。该系统有两台氦-氖气体激光器,放在机场跑道的末端。一台激光器以飞机进入机场的下滑角向天空射出一窄束红光。第二束
Royal Philips Aircraft is testing a laser navigation system at a small airport developed by Scientifica & Cook Electronics. The system has two helium-neon gas lasers placed at the end of the runway. A laser fired a narrow beam of red light to the sky as the aircraft entered the airport’s glide angle. The second bunch