曲线的拐点不能太多，曲线拐来拐去，就会不顺眼，对平面曲线而言。
Secondly, an improved approach for fairing of bi-cubic B-spline surface is presented.
提出了一种改进的双三次B样条曲面光顺方法。
参考来源 - 高质量工程曲面的重建与曲面品质检查分析3D Surface Modeling; medical visualization; B-spline Surface; surface smoothing; three-dimension surface edit.
三维曲面造型; 医学可视化; B样条曲面; 曲面光顺; 三维曲面编辑。
参考来源 - 基于CT数据的三维曲面造型及应用·2,447,543篇论文数据，部分数据来源于NoteExpress
并且提出了保证两张曲面片连接光顺性的条件。
Conditions ensuring the smoothness of two surfaces is presented.
本文首先介绍了FASTLINE船舶线型设计和光顺系统。
The paper introduces a ship lines design and fairing software FASTLINE.
光顺是汽车开发的关键步骤之一，对汽车车身质量和开发周期有着重大的影响。
Surface treatment is one of the key steps in automotive development, and has great influence on body quality and development cycle.
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