In computation on blade grounding tool design in technical preparation, accurate blade passage data necessary for tool design has been obtained using free camber modeling technique of 3d CAD.
以生产准备中磨叶片工具的计算为例，使用三维CAD系统的自由曲面建模技术，精确计算出叶片工具设计中所需叶片通道数据。
The geometry of airfoils, which is proper for the free-wings, was numerically investigated and the results indicated that the airfoils must be featured by the S-shaped camber.
本文研究了自由翼的翼型的几何特征，表明它们的中弧线都具有反折的特点；
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