曲面曲面 简介 可视化 Toolbar结构 控制点,行和栅格权重 基本体 NURBS CurveNURBS CircleNURBS SurfaceNURBS CylinderNURBS SphereNURBS Torus 选择 选择菜单Select RandomChecker Deselect选择关联项Select SimilarSelect Control Point RowSelect More/Less Editing Transform PanelSurfaceControl PointsSegmentsOther Properties ShapeActive Spline