| 摘要 |
The axis (10) in each blade (3,4) passing through the blade cross-section centre of gravity crossways to the longitudinal direction of the blade is so displaced laterally relatively to the corresp. adjustment axis (6) along at least a part of the length of the blade, that the torque resulting from centrifugal forces when the blade wheel rotates, and which attempts to turn the blade around its adjustment axis, is at least partly obviated. |
