短語詞組短語bending moment axis 中和軸位置bending radius of axis 軸線曲率半逕The bending of bend axis 曲軸彎曲Axis bending 彎軸;軸是否彎曲axis of bending 彎曲軸線cross -axis roll bending 輥筒軸交叉反彎曲裝置 返回 bending axis