Polynomial curve fitting is a usually used data fitting method. When there are too many data for fitting, only just one polynomial curve function cannot acquire good fitting effect.
多项式曲线拟合是一种较常用的数据处理方法，但当数据点较多时，只采用一种多项式曲线函数拟合所有数据点难以取得较好的拟合效果。
Through rapid prototyping machine, can materialize the digital model of proximal femur and receive the materialized model which have extremely good fitting degree with the actual bone.
利用快速成型机可以将股骨近端的数字模型实体化，得到与实际骨骼拟合程度较高的实体模型。
The network was tested with the experimental data and the deviations between the measured data and the forecast were less than 3%, this means that the neural network had a good fitting.
网络检验结果表明，原丝性能预测值与实测值的相对误差不到3%，网络具有良好的拟合性。
An exponential model is proposed to fit the stress-strain-time curve and obtaining good fitting effect. Parameters of this model are easy to get and can reflect the compressibility and its mechanism.
采用指数模型拟合城市固体垃圾的应力-应变等时曲线，并取得了很好的拟合效果，模型参数简单易求，可反映城市固体垃圾压缩性的大小及其压缩机制。
An exponential model is proposed to fit the stress-strain-time curve and obtaining good fitting effect. Parameters of this model are easy to get and can reflect the compressibility and its mechanism.
采用指数模型拟合城市固体垃圾的应力-应变等时曲线，并取得了很好的拟合效果，模型参数简单易求，可反映城市固体垃圾压缩性的大小及其压缩机制。
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