评定

When to get the coefficients of polynomial directly,the ill-conditioned matrix may be produced and effect the precision of result.Using orthogonal polynomial can avoid this problem.This paper introduces 4 orthogonal polynomial.In our discussion,it is proposed to use Chebyshev polynomial and Legendre polynomial,they are easier to sa...

讨论4种常用正交多项式在拟合卫星轨道与时间函数时的适用性；通过计算实例说明利用切比雪夫多项式和勒让德多项式做数据拟合时具有很高的精度；分析得出评定多项式拟合数据精度的适用阶数，实际应用中可降低工作量，提高计算效率；最后讨论同一多项式阶数下不同历元数对拟合结果的影响。

Our cineplex was assessed as five-star multiplex cineplex, passed iso9001 quality management system certification .

本影城荣膺五星级多厅影院评定，通过ISO9001质量管理体系认证。

The roundness of grit's projection was assessed by minimum circumcircle method.

以最小外接圆法评定了金刚石颗粒投影的圆度。

The data processing method for evaluation the circularity error with minimum circumscribed circle and maximum incircle was introduced.

介绍按最小外接圆法、最大内接圆法评定圆度误差的一种快速、简便、易于微机实现的数据处理方法。

It showed the correctness of the criteria of roundness error and relationship between the minimum zone circle, minimum circumscribed circle and maximum inscribed circle and the effectiveness of the methods for evaluation of roundness error.

也验证了圆度误差判别准则及最小区域圆、最小外接圆和最大内接圆特征点间的相互关系的准确性和误差评定方法的有效性。

The criteria of the minimum zone circle method, minimum circumscribed circle method and maximum inscribed circle method were researched and the criterion of obtuse triangle was proposed.

研究了圆度误差评定中最小区域圆法、最小外接圆法和最大内接圆法的判别准则，提出了具有最小误差的外接圆和内接圆的钝角三角形准则，使圆度误差的判别准则得到完善。

The relationship between the minimum zone circle, minimum circumscribed circle and maximum inscribed circle was studied. Based on their relationship, the minimum zone circle and minimum circumscribed circle, maximum inscribed circle were transformed mutually.

本文研究了最小区域圆与最小外接圆、最大内接圆特征点的相互关系，实现了最小区域圆与最小外接圆、最大内接圆的相互转化，可有效解决最小区域圆的误差评定。

The optimization algorithms are commonly used to approach the minima of the roundness objective functions through iteration when a microcomputer is applied to assess roundness errors by minimum zone, minimum circumscribed circle, and maximum inscribed circle methods.

引言在用计算机求最小区域、最小外接圆和最大内切圆评定法求圆度误差时，广泛采用最优化算法，通过迭代去逼近目标函数的极小值。

The details as follow: 1.Based on rules about form error in GB, mathematical models of form error are established including straightness error on the base of minimizing zone method、least-squares method and two dots linked method ; flatness error based on minimizing zone method、lease-squares method、diagonal line and three dots method; circularity and cylindricity error based on minimizing zone method、lease-squares method、minimum circumscribed circle and maximum inscribed circle.

具体内容如下：根据国标中形状误差的相关规定建立了各种要素评定方法的数学模型包括：直线度的最小区域法、最小二乘法、两端点连线法；平面度的最小二乘法、最小区域法、对角线法、三远点法；圆度和圆柱度的最小区域法、最小二乘法、最小外接圆法、最大内切圆法。

CSI consists of three parts,the Achilles tendon reflex,resistance to passive stretching as evaluated by the modified Ashworth scale and the clonus.

该指数包括腱反射、肌张力、阵挛的评定3个方面，总分16分，0～9分为轻度痉挛，10～12分中度痉挛，13～16分重度痉挛。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。