曲线拟合

Based on the research results of domestic and foreign experts, the article uses fitting induction to draw the relation curve of speed and density of the passenger flow at the loading areas and upward stairs of Beijing Subway Line 1, and produces the suitable mathematic model by regression.

在借鉴国内外学者研究成果的基础上，本文拟合归纳出北京地铁1号线站台集散区和上行楼梯处客流速度与密度理论关系曲线，回归出得到相应数学模型。

This paper measured the transmittance spectrum of Sr_3NbGa_3Si_2O_(14),a new kind of piezoelectric single crystal,from ultra-violet to visible wavelength and studied its optical activity by a novel method—measuring the transmittance spectra in Z-direction between parallel polarisers. And the rotation dispersion was fitted.

本文测定了紫外、可见光区新型压电晶体—Sr3NbGa3Si2O14的透过率，并利用一种新方法即通过测量晶体在平行偏振系统中的透过率谱研究了其旋光性，且拟合出旋光色散曲线。

Coupling between different planers motion of a cable and between cables and mast having been considered, a practical formula is developed to calculate dynamic tension of cable and dynamic equations of guyed mast expanded order system are derived.

在单索结构振动理论的基础上，用纤绳的前4阶振型拟合其空间振动曲线，综合考虑纤绳在空间的耦合振动和纤绳、杆身的相互影响，得到纤绳动张力实用表达式和整体结构的扩阶振动方程。

Afterwards, dynamic tests to machining center were processed by using sine wave excitation, pseudo random excitation and impact experiment methods.(3) The frequency-domain parameter identification method was used after the experiments, through which system mode parameters, system characteristic curve and system mode shape were obtained.

运用频域模态参数识别法，得到了系统的模态参数，绘制出了系统的特性曲线，并得到了系统的振型；对所得结果进行了模态拟合验证，较好地揭示了系统的系统特性，为动态优化设计奠定了基础。

From the experiment's data, before sampling I have analysed the shortage of the ACCUSTAR angle sensor, plot its error curve and established linear drawing up to match to correct it. Then I will adjust it to zero and set a mark before using it, and improve the examining environment.

本课题研究了此倾角传感器的具体特性，从实验数据着手，先是分析了传感器本身的物理缺陷，描绘出了它的非线性特征曲线，并制定了专门修正它的线性拟合修正法；其次是在使用前，在检测现场对传感器进行了调零和定标，并且对实验现场的环境进行了改善。

On the studies of three different assist characteristic of EPS, the method of founding curve type assist characteristic is discussed and the curve of assist characteristic is trained offline by neural network. And with the toolbox of MATLAB, the perfect expression of assist characteristic can be obtained.

本文对三种不同形式的EPS助力特性进行了理论上的分析，在离散助力特性研究的基础上，探讨了初步确立曲线型助力特性的方法，并提出以神经网络对助力特性曲线进行离线优化训练，通过MATLAB工具箱拟合得到了比较理想的电动助力系统的助力特性表达式。

According to the characteristics of SRM, this thesis designed a conventional sliding mode speed controller.

主要内容有：通过实测的电流-磁链数据，拟合了试验样机的最大电感曲线，并在此基础上建立了SR电机的非线性电感模型。

Use 8 channels 10 A/DMAX 192 two shunt-wound means, the sample that can differ to 10 kinds at the same time undertakes an analysis, and basis beforehand the optical density value of demarcate and pH indicator plan to add up to a curve to give out analytic result.

采用8通道10位A/DMAX 192两片并联的方式，可以同时对10种不同的样品进行分析，并根据事先标定的光密度值和浓度的拟合曲线给出分析结果。

The results showed that the three straight lines model could fit the soil shrinking and swelling characteristic curves well. The characteristic values of the curves were smaller than 1. This indicated that during the processes of soil swelling and shrinking, the change of the soil specific volume was smaller than that of the soil water content. Values of the geometry factors of four soils studied were equal to 1 at the beginning of shrinking, less than 3 and greater than 1 at other swelling-shrinking phases. The geometry factor values in different phases showed that soil swelling-shrinking was anisotropic and only subsidence occurred at the beginning of shrinking.

结果显示：三直线模型能够很好地拟合4种土壤的收缩、膨胀过程；土壤收缩、膨胀曲线各段的特征值均小于1，这说明土壤胀缩过程中土壤容积的变化速率小于含水量的变化速率；4种土壤胀缩过程中几何因子r大于1而小于3，且收缩初期几何因子r等于1，表明土壤的胀缩是各向异性的，并且在土壤收缩的最初阶段只有垂直收缩。

The fitting curve interpolates the corners and approximates other points in the sense of least-square.

该算法通过插值角点逼近其余数据点得到拟合曲线，更适合实际碎片轮廓的情形。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！