是面试 mechanical, areodynamics engineer degree 的吧 Aeroplane lifts off by generating the aerodynamic force created with it's aerofoils. At a certain speed, the aerofoils created enough pressure difference between the lower an...
Since the Brother Wright's invention of airplane in 1903, we human beings are able to fly like birds. And now, more than 100 years passed, the plane changed from a bookshelf into huge jet plane,carring more than 500 people, fro...