误差模型

Based on the test of practical measure of laser water-level gauge, the error is less than 0.6mm in the measure range less than 5 meters. Compared with other field water-level measure apparatuses in common use, the precision of laser water-level gauge has obvious improvement. And this gauge can also be applied to physical modeling experiment in river engineering.

4研制开发的激光水位仪经实测检验，在5米测距范围内，测量误差小于0.6mm，比常用的野外水位观测仪器的精度有明显的提高，该仪器亦可用于河工模型试验的水位测量。

Simulation results show that the distributing capacitance of these differential capacitance sensors, the zero potential of the rotor and the model error are the major negative factors.

实验结果表明，差动电容传感器的分布电容、陀螺转子的零电位和模型误差等是影响测量精度的主要因素。

From the surfaces obtained and the assembly errors mentioned before, the geometry model of the worm gearing in which the typical errors are included is thus established for finite element analysis.

从表面获得的装配误差说过，几何模型的蜗杆其中典型的错误都包括在内因此建立有限元分析。

In order to reduce geometric errors between motion trajectory and work piece curve,this paper present a means of controlling trajectory motion law to replace traditional position control.

为了减小刀具运动轨迹与工件几何曲线的误差，提出将传统的位置控制改为物理运动规律控制，即建立数控机床的运动模型，分析被加工轮廓的曲线方程、加工工艺运动要求与刀具加工运动的合成或分解关系，推导出轨迹运动方程组。

First the dual-body satellite model is established and the control laws of reaction wheel are designed. Based on this the extended Kalman filter estimators with attitude sensor updated by star tracker are designed to provide error corrections for the pseudo-gyro and inertial gyro.

首先建立了双体卫星模型，并设计了动量轮控制律，在此基础上根据星敏感器的测量信息，应用广义卡尔曼滤波器来估计姿态和角速率漂移误差，进而对伪陀螺和惯性陀螺进行校正。

The RANS governing equation and RNG κ-ε turbulence model were used, and the flow fields at different relative positions between blade and volute tongue in a centrifugal pump were simulated by using finite volume method, under the hypothesis of steady flow.

本文选择RANS方程和RNGk-ε湍流模型，采用有限体积法，在假定流动定常的前提下对离心泵中叶片与蜗舌不同相对位置时的流场进行数值模拟，总结分析了各性能参数的计算误差在不同的相对位置时的变化规律。

According to this, we analyse the conintegration relationship between corresponding currency supplies with main economy variable, and build error correction model.

在此基础上，具体分析相应货币供给量与主要经济变量之间的协整关系，建立误差修正模型。

In the population model, the dependent variable y is related to the independent variable x and the error u as

在总体模型中，因变量y与自变量x和误差项u关系可以写作

In the population model, the dependent variable y is related to the independent variable x and the error u as

在总体模型中，因变量 y 和自变量 x 和误差

Al addition,blowing oxygen,alloy addition and the initial temperature of the vacuum vessel wall have more effect on the temperature of molten steel.

采用该模型预测了精炼结束时刻的钢水温度，与生产中钢水温度平均误差在±5℃以内的占80％。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失