在人们的印象中,飞机机翼的伸展状态是固定的,不能上下翻动。像鸟儿一样扑动双翼翱翔天空是人类多年的梦想。这个梦想在南京航空航天大学大三学生胡铃心和合作伙伴段文搏手中变成了现实。他们的发明在全国第八届“挑战杯”大学生科技作品竞赛中获得特等奖。 In people’s minds, the stretch of the aircraft wing is fixed and cannot be turned upside down. Fluttering like wings of a bird is the dream of mankind for many years. This dream became reality in the hands of Hu Lingxin, a junior in Nanjing University of Aeronautics and Astronautics, and Duan Wenbao, a partner. Their invention won a special award in the eighth “Challenge Cup” college student science and technology competition.