系统误差

However, the bigger size and polydispersity of the vesicles may result in experimental errors in this study.

但本实验中之脂质微粒系统的平均粒径及分散性可能造成实验结果判断的误差。

The design of yaw rate tracking control system a rchitecture by using μ synthesis robust control is presented and the weight ing f unctions are selected.

车辆总是承担不同的载荷，车辆建模亦存在着误差，传统四轮转向控制器难以达到原有的性能指标；针对外界干扰，采用μ综合鲁棒控制方法，构造横摆角速度跟踪综合控制系统设计框架，选取了不同环节的权函数。

Therefore, the calculated results from two numerical computation codes are in good agreement with those from field theory calculation. It has been proved that the applicability of this approach to mode separation research, by contrast, the tested results of mode frequency coming from the Model 2M214 magnetron (double-ring strappings) manufactured by LG Electronic Co.

对于LG 2M214型双环隔模带磁控管，模式分隔度的分析结果与韩国LG公司生产的磁控管实测结果相比较，预测误差仅为0.6%，能够与实际测试结果很好的相符合，预测精度足够高，从而证实了本方法在磁控管谐振系统模式频率分隔特性预测方面的可用性。

By the modem time series analysis method, based on the ARMA innovation model, under the linear minimum variance optimal information fusion criterion, three distributed fusion steady-state optimal Kalman filters, predictors and smoothers weighted by matrices, scalars, and diagonal matrices are presented for multisensor systems with correlated input and observation noises, and with correlated observation noises. The Lyapunov equations and formulas of computing local filtering, predicting and smoothing error variances and covariances are given, which are applied to compute optimal weights. The corresponding three distributed fusion Wiener state estimators are also presented.

应用现代时间序列分析方法，基于自回归滑动平均新息模型，在线性最小方差最优信息融合准则下，对于带相关输入噪声和观测噪声和带相关的观测噪声的多传感器系统，提出了按矩阵加权、按标量加权和按对角阵加权的三种分布式融合稳态Kalman滤波器、预报器和平滑器，其中提出了局部滤波、预报和平滑估值误差方差阵和协方差阵的Lyapunov方程和计算公式，它们被用于计算最优加权，也提出了相应的三种分布式融合Wiener状念估值器。

Locating Error Analysis in Pipeline Leakage Detection and Prewarning System Based on Modeling Using Jones Matrix.

基于琼斯矩阵建模的管道泄漏检测及预警系统的定位误差分析。

A novel method of measuring plus lens's focus is given, which is based on LCD, CCD, and digital image processing It is also a discussion on photoelectric method of automatically measuring parameters of an optic system In this method, a LCD is used as a reticle of the collimator, while the image on the accepting side is transformed into digital image and is sent into a computer The focus can finally be calculated out through digital image processing and analysis The method of measurement is introduce...

讨论了一种基于LCD、CCD和数字图像处理的正透镜焦距测量方法，是光电法自动化测量光学系统多个参数的一种有益的探讨。用液晶屏显示分划图形取代平行光管的分划板，用CCD在接收方采集数字图像并送入计算机，通过图像处理和分析得出被测透镜的焦距。运用叠加的方法提高图像的信噪比；结合重心法和平行线拟合方法求取平行线对的间距；应用高精度焦距标准透镜标定数字图像和实际像之间的比例关系。详细介绍了测量和图像处理的方法，进行了公式推导和误差分析，并给出了实验结果

On the base of above mentioned, available error compensation system can be built, manufacturing accuracy of the ultra precision lathe is improved largely.

在上述研究内容的基础上，成功地研制了较为完善的误差补偿控制系统，大幅度提高了超精密车床的加工精度。

In order to meet the demand of thermal design of modern machine tools, thermal model and thermal characteristics of high-speed spindle system in numerical control precision lathe were studied in detail using finite element method.

进一步计算主轴系统的热变形，并通过对主轴箱体散热筋板的合理布局和优化设计，有效降低了主轴头部的径向跳动和端跳误差，使其小于 2μm，均能满足设计要求。

For instance, GNSS can be used to correct the odometers errors which are brought by skid and slip. Virtual balise and virtual signal can be achieved. It can reduce the cost of the train positioning system greatly by reducing trackside equipments and workload of maintenance. GNSS (Global Navigation Satellite System) develops quickly.

GNSS(Global Navigation Satellite System)可以提高列车定位的性能，例如采用GNSS技术可以对里程计打滑、抱死产生的误差进行校正；可以实现虚拟应答器、虚拟信号机，减少轨旁设备及维护工作量，大大降低系统成本。

A feedback control system nulls the four errors.

反馈控制系统(100)使这四个误差归零。

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