300年后，一位英国工程师乔治·凯利在经过了无数次失败的实验后，终于得出了一个重要的结论：飞行需要抬升力、推进力和控制力。
It took more than 300 years and many more failed experiments until Sir George Cayley, a British engineer, determined that flight required lift, propulsion, and control.
介绍了达涅利康力斯的转炉副枪系统、静态和动态控制模型。
The sublance system, static and dynamic model of converter steelmaking of in Danieli Corus are introduced.
应用推荐