The military sees a great need for small, lightweight aircraft that can be easily transported and support vertical takeoff and landing ( VTOL ) capabilities. 军方一直以来都希望能装备微型飞机,这种飞机体积小,重量轻,易于运输而且还具备垂直起降功能。
Not only military industry but also civil industry, has an urgent demands of lightweight, energy saving and control of vibration and noise. 无论是国防工业还是民用工业均对结构轻量化、节能、减振降噪性提出了迫切的需求。
In aviation, aerospace, transportation, military equipment and other fields, profiles as an important structural material have been more and more widely used, while the material made lightweight, recyclable, anti-electromagnetic interference and other requirements. 在航空、航天、交通运输、军事器械等领域,型材做为重要的结构材料得到了越来越广泛的应用,同时对材料提出了轻量化、可回收、抗电磁干扰等新的要求。