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迄今为止,世界上没有哪种飞机比北美航空公司的X-15飞得更快,更高。X-15的任务是在极高的速度和高空条件下试验新材料,试验先进的飞行控制技术。
So far, none of the world’s aircraft flew faster and higher than the North American Airlines X-15. The mission of the X-15 is to test new materials under extremely high speed and altitude conditions and test advanced flight control technology.