短語詞組短語outer curvature radius 外部曲率半徑curvature radius of waterway 航道彎曲半徑curvature radius of channel 航道曲率半徑first curvature radius 第一曲率半徑tunnel curvature radius 隧道曲率半徑wavefront curvature radius 波面曲率半徑spherical curvature radius 球面曲率半徑minimal curvature radius method 最小曲率半徑法groove curvature radius 溝道曲率半徑 返回 curvature radius