误差

A two dimensional fuzzy controller was designed to keep the interelectrode gap at a stable and low value, the inputs of controller were the current error and the change of current error which was transferd from the error of interelectrode gap.

设计了一个二维模糊控制器，以进给速度的增量为模糊控制器输出，将间隙的误差转化为电流的误差及误差的变化，以此作为模糊控制器的二维输入向量，使加工维持在稳定的小间隙状态。

A fuzzy controller was designed,of which the inputs were the force error and the change of force error which was transfered from the error of interelectrode gap by using another BP NN which was trained by the pair of the gap-force data gathered in the test, the output of controller was the increment of feed velocity.

与阴阳极间间隙的关系；采集电解加工过程中阴极表面上的力信号，经过信号处理后用其训练一个BP神经网络，实现间隙的在线检测；设计了一个模糊控制器，把间隙的误差转化为力的误差，将误差的变化信号作为模糊控制器的输入，将进给速度的增量作为模糊控制器输出。

We have improved the method of anisotropic interpolation error estimations and presented a method to estimate the consistent errors of nonconforming elements.

我们改进了各向异性插值误差估计的判定方法，并给出非协调元的相容误差的各向异性误差估计的方法。

Many kriging interpolations showed that the interpolation error of lognormal kriging was larger than that of ordinary kriging.

多项性质的内插误差比较表明，常量趋势泛克里格法与—阶趋势的普通克里格法的误差小于其它克里格法的误差，且二者较为接近，对实测数据的反映也较其它方法好。

The main contents include: Some preliminary theory (introduction to Sobolev spaces and variational formulations for differential equations); finite element methods for one-dimensional elliptic problems; the construction methods for general finite elements; error estimates for interpolation operators and inverse inequalities for finite element spaces; a priori and a posteriori error estimates for the finite element method for high-dimensional elliptic problems; some typical spectral methods for partial differential equations; error analysis for the spectral approximation for some linear and nonlinear partial differential equations.

主要内容有：准备知识（Sobolev空间的基本概念和主要结果，微分方程的变分描述）；一维椭圆型方程有限元方法；一般有限元的构造；插值算子误差估计和逆不等式；高维椭圆型方程的先验、后验误差估计；求解偏微分方程的几类谱方法；线性与非线性问题谱逼近的误差分析等。

At first, the conventional elastic parameters inversion based on Shuey formula and simplified Shuey formula is discussed for the model of Chinese and Mexican, and the errors of inversion elastic parameters is analyzed.

对于不同地区、不同深度的含气和含水砂岩等各种模型其反演参数的误差情况不同，并且利用不同的入射角度对应的反射系数反演的误差也相差很大，许多情况反演的误差甚至非常大，没有一定的规律可循。

A quantitative method is presented to analyze and estimate the influence of different error sources on the final isoclinic results calculated by FCPST or the other PST.

本文提出它们影响五步彩色相移法的定量误差分析方法；提出控制各误差的具体指标；给出了避免或降低这些误差源影响的措施，为合理设计制造仪器、指导实验和保证实验结果的精度提供了依据。

Through virtual experiment to obtain large sample data respectively on errors of displacement, velocity and acceleration with regard to the executive mechanism, and there out obtained the distribution law of errors and acquired the reliability of errors.

通过虚拟实验分别获取关于执行机构位移、速度、加速度误差的大样本数据，并由此得到误差的分布规律，求取误差的可靠度。

The model of errors analysis is established by applied force and transferring law of original errors. The modal with universality can be applied to position errors analysis of plane and spatial mechanism.

该方法通过机构中作用线、运动线研究原始误差传递的规律，建立误差分析模型，概念清晰，具有一般性，适用于平面与空间多种机构的位置误差分析。

The limit on increment of probable error of muzzle velocity has been derived on the basis of that the increment will increase probable error of range and decrease probablity hitting the mark.

基于对初速或然误差增大所引起的射程或然误差增大和命中概率降低的限制，导出了对库存弹药初速或然误差增大的限制。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。