| 摘要 |
<p>The blade (1) comprises a platform (2) and a root (3) arranged to be connected to a blade carrier (22). From the opposite sides of the platform (2), airfoil portions (5, 6) extend. Each airfoil portion (5, 6) defines one operating surface (7, 8) being the surface facing the other airfoil portion (6, 5). An operating surface (7, 8) of one of the airfoil portions (5, 6) defines a suction side and the other operating surface of the other airfoil portion defines a pressure side.</p> |
