EXTEND#TYPE 延拓類型#Same#Srf 相同曲面New surface will have the same type as the selected quilt.新曲面與所選取面組的類型相同。Approx#Srf 近似曲面New patches will be spline surfaces that are tangent at extension edges.新曲面片將是在延拓邊相切的樣條曲面。Along#Dir 沿方向Extend along a specified direction.沿著一個指定的方向延拓。Tangent#Srf 相切曲面New surface will be tangent to the selected quilt at vertices.新曲面與所選面組在頂點相切。