曲线拟合

The grain filling process of two wheat cultivars with different spike-types were modeled with Cubic, Quadratic and Logistic equation,in which all the R~2 values were significant, and the difference among the R~2 values was also significant.

结果表明：通过用不同方程对籽粒生长动态进行拟合，Cubic、Quadratic及Logistic方程的R2值均达显著水平，且三种曲线的R2值间差异明显。

The stress-strain curve of new-old concrete and HPRRC, are suggested to be modeled by two sections: the ascending section of the stress-strain curve is simulated by cubic parabola equation and the descending section is simulated by rational fraction, where the theoretical value is in good agreement with the test value.

新—老砼及HPRRC应力—应变全曲线建议采用两段式拟合：上升段采用三次抛物线方程模拟，下降段采用有理分式模拟，理论值与试验结果吻合较好。

And then corresponding regression equation of each curve was obtained by curve fitting.

并通过计算机拟合出各曲线相应的回归方程。

In order to process conveniently,we need to fit out with suitable style space curve usually in control processing.

在数控加工中，通常需要将空间曲线用合适的样条拟合出来，以方便加工。

A projection method is used to smooth out start and end points of the ruling line sets. With predefined Euclidean 6 space distances, the problem of ruled surface approximation from line sets in Euclidean 3 space can be converted into a least square B-spline curve fitting issue in Euclidean 6 space.

利用"投影"光顺法对齐直母线段族首末端点，再通过定义欧氏6空间下的距离函数，将欧氏3空间下的直线族逼近直纹面问题转换成欧氏6空间下B样条曲线最小二乘拟合问题。

It is feasible to analyze and fit the growth curve of the Tibetan chicken using the three models.

运用3种模型对藏鸡进行生长曲线的拟合和分析是可行的，对及时了解藏鸡的生长发育规律提供了参考。

The model system is in the generalized curvilinear coordinates, using high precision self-adaptive grids to fit the complicated topographies and coastal shapes.

模型系统采用广义曲线坐标系下的形式，使用高精度的自适应网格拟合复杂岸界。

The fit of the decrement to the simulation was done with the burdening decay experiment, and the curve and equation of the decrement was found.

通过载荷衰减实验对模拟所得结果进行了衰减量的实验数据拟合，得出了衰减量的曲线和方程式。

A new technique is proposed to demodulate output signals of this kind of sensors.

本文提出了一种解调这类传感器输出信号的新技术，对三路输出信号组成的椭圆曲线进行系数拟合进而复原调制信号。

So we suggest a new method for the measurement of d〓 according to the SHG conversion efficiency at some non-phase-matching direction, the optimum focus parameter ofNPM SHG was given also.

在KTP晶体球中第Ⅰ类PM SHG实验中，我们通过转动晶体球，直接根据谐波输出的强度得到了SHG的相位匹配方向，从而避免了折射率测量或色散方程计算的误差，并得到了精确的KTP晶体完整的第Ⅰ类PM曲线，以及相应PM方向的有效非线性系数d〓，根据这个测量结果，我们对文献报道的六组色散方程进行了比较，认为由Vanherzeele和Bierlein给出的色散方程拟合精度最高。

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！