An advantage of using simple cambered plate aerofoils is that they are cheap to produce, thereby enabling the manufacture of an inexpensive turbine of simple and robust construction.
采用简单的弯板翼型的优点在于它们造价低，从而使结构简单并且坚固的涡轮机的造价低。
2
Geometric characteristics for blade aerofoils during fan design, superposed aerofoils by analytic method, and the method to set up aerofoil circumference equation method are described.