提出了一种有效的跨音速翼型气动优化设计方法.An effective aerodynamic optimization design method of transonic airfoil is given.翼型的流场解由欧拉方程的数值解提供.The numerical solution of Euler equations is provided as flow solver.12翼型动态测压的实验结果,初步分析了影响翼型动态气动特性...
Changes were made in operating methods in an effort to increase profitability.为了提高利润,经营方式上发生了改变。These costs will impact on our profitability.这些费用会影响到我们的利润.A product manager is responsible for product profitability.产品经理对产...