Ferrocement allows greater precision and flexibility in adapting to the free form shape, at a much lower construction costs.
薄壳混凝土工艺在适应自由形体方面具有更高的精确性和灵活性，而且建设成本低得多。
Spline surfaces are very important for the modelling of free form surfaces, because of their flexibility, simple concept and easy shape manipulation by the control points.
样条曲面具有灵活性，概念简单，易于通过操作控制点控制形状，所以对于自由曲面建模十分重要。
Free form surface is most important feature to shape of product such as plane, automobile, motorcycle.
自由曲面是工业产品，尤其是飞机、汽车、摩托车等行业产品外形的重要特征。
The shape of streamlined train head is made of the 3-dimensional space free form surface, whose shape outline curve USES NURBS curve and complex shape surface USES 3-d NURBS surface.
基于流线型的列车头部外形由三维空间自由曲面构成，提出采用NURBS曲线设计外形型线和用三维nurbs曲面描述复杂三维曲面的车头外形设计方法。
In the field of measurement for free-form surface, it is a hot topic how to obtain the shape information as more as possible by the certain sample points.
如何用最少的测量采样点提取最多的曲面信息是曲面检测领域的热点研究问题。
On the base of the fairing of free-form surface reconstruction from 3d data points, this paper probes one method based on shape constraints.
针对三维数据点重构自由曲面的光顺问题，探讨了一种基于形状约束的曲面重构技术。
On the base of the fairing of free-form surface reconstruction from 3d data points, this paper probes one method based on shape constraints.
针对三维数据点重构自由曲面的光顺问题，探讨了一种基于形状约束的曲面重构技术。
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