offset curve meaning in English

曲线移动
线移动

Interval polynomial curves approximation of offset curves
曲线的光顺
( 2 ) offset approximation for bezier curves the problem of parametric speed approximation of a curve is raised . the author points out that the crux of offset curve approximation lies in the approximation of parametric speed
( 2 )等距曲线逼近( offset )提出了曲线参数速度逼近问题，指出等距曲线逼近问题的关键在于参数速度的逼近
In the last part of the article applications of space cubic ph to sweep surface modeling and pipe surface modeling are introduced , and sufficient criteria that guarantee that the offset of a sweeping surface are generated by the offset curves of the profile curve is investigated
最后，本文介绍了空间三次ph曲线在扫曲面和管道面造型方面的应用，并研究了一扫曲面的等距面为该扫曲面轮廓线的等距线所生成的充分条件。