论文部分内容阅读
【发展历程】早在1903年,莱特兄弟就发明了飞机。1915年,法国在莫拉纳—索尔尼埃L型飞机上装上一挺机枪和一种叫做偏转片的装置,使它真正具
[History] As early as 1903, the Wright brothers invented the plane. In 1915 France mounted a machine gun and a device called a deflector on the Morana-Solniere L-Type aircraft to make it truly