The secret of the machine lies in the aerodynamic shape of the frame.该机器的精妙之处在于其构架呈流线型。An effective aerodynamic optimization design method of transonic airfoil is given.提出了一种有效的跨音速翼型气动优化设计方法.Various aerodynamic devices, ...
本文采用墨汁明胶灌注法显示泰和鸡的小肠绒毛微血管构筑.The microvascular architecture of the small intestinal villi of injection method with which gelatin mixed ink.本文应用血管色素明胶灌注法,观察了54例成年家兔的大脑动脉环.The cerebral arterial circles of 54 adult rabbits we...