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西尔多·冯·卡门(1881—1963),著名科学家,国际航空和航天领域杰出的领导者。他设计制造了世界上最早的系留式直升飞机,开创并发展了航空学和航天学上一系列重要理论。不仅如
Silvat von Carmen (1881-1963), a distinguished scientist and a distinguished leader in the field of international aviation and aerospace. He designed and built the world’s earliest tethered helicopters and pioneered and developed a series of important theories in aeronautics and astronautics. Not only