这一结果可以与细分技术相结合，得到有理曲面的分片区间多项式的逼近。
This result can be combined with subdivision method to obtain a piecewise interval polynomial approximation for a rational surface.
着重介绍了数值逼近方法中的多项式曲面函数模型逼近法，并通过实测数据对多项式函数模型的精度进行分析。
The paper emphasizes on the methods of polynomial surface approximation which is part of numerical approximations, and analyzes the precision of polynomial function model through the measured data.
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