查询词典 round off error

As the result of theoretical analysis and practical test, the systematic error corrections of the second-order level measurement must include collimation error correction, refraction error correction and orthometric correction (altitude over more than 50 m in the examining area).

经理论分析与实际测试后发现二等水准测量须做视准轴误差、折射误差与正高改正（测区标高超过50公尺以上），而二等水准测量，则须加人视准轴误差，测区标高超过100公尺以上，亦需加人正高改正。

Differing from the feed-back error compensation method, the selflearning error pre-compensation method offered by the paper is based on both ANN and time series technique to obtain the error pre-compensating curve using the non-linear ANN pre-compensation model. Because of the self-learning character of the ANN, this new type of precompensation model can be self-adjusted.

与常规的反馈补偿方法不同，本文提出的自学习误差预测补偿方法，将时间序列预测与神经网络的自学习自适应优化建模技术相结合，利用神经网络非线性预测模型产生误差预补偿函数，并利用神经网络的自学习特性对所建预测模型进行修正，所以这种新型的误差补偿方法能够获得更高的误差补偿精度和控制速度，简单实用，适于推广，具有生产应用价值。

The predictive coding is based on the relativity between the neighboring pixels. On the coutrary, steganograph will destroy the relativity between the neighboring pixels. Through computing and analysing the predictive error of cover image and steg image, it is obtained that steganograph will increase the predictive error. So the predictive error can be used to detect steganograph.

该算法的基本思想是利用空域隐写会破坏图像相邻像素之间的相关性，而预测编码是利用图像相邻像素之间的相关性来预测的，这样隐写后图像的预测误差将会大于载体图像的预则误差，通过计算隐写前后图像的预测误差来分析图像中是否含有秘密信息。

This paper discusses some application cases of the error propagation law by the examples of trigonometrical survey, and presents that not only sum function and numeral multipling function in which there is only one independent observed value but also more complex functions which are equal in mathematics are not opposite in the process of error propagation according to the error propagation law.

1引言本文以三角测量为例，对误差传播定律一些应用问题进行了讨论，指出当只有一个独立的观测值时，和函数与倍数函数运用误差传播定律不会出现悖论；如果在测量工作中有多余的直接观测值，就需用平差后的间接观测值按协方差传播律来计算，这样数学中相等的函数关系才能得到同样的函

In this paper,the position accuracy improving method of the opening CNC system based on PMAC is analyzed,the servo-control algorithm which involves PID,velocity/acceleration feed forward control and notch filter and the error compensation function provided by PMAC is discussed,the pitch error compensation and the clearance error compens.

文章分析了在基于 PMAC 的开放式数控系统中提高定位精度的具体方法，对 PMAC 所提供的&PID+速度/加速度前馈+陷波滤波器&的伺服控制算法和误差补偿功能进行了阐述，将螺距误差补偿和间隙误差补偿应用于航空航天领域某型测控系统的系统误差补偿中，取得了良好效果。

The "bail" function is called whenever a database connection error is encountered, and does what it's name said - bails out the error and displays an error message instead to notify the users.

&保释&功能是所谓每当一个数据库连接错误是遇到的，和做什么，它的名字所说的话-b ails出错误，并显示错误讯息，而是要通知用户。

This research remodels Reason's (1997, 2000) human error cheese model into the Interpreting Error Model which displays the mode of error occurrence in a simultaneous conference interpreting event.

这些上游因素来自会议筹办单位及讲者的缺失，然而，会议筹办单位、讲者和口译员都可以启动必须的防护机制，共同避免错误发生，以维持口译员的专业表现。

Through investigation we recognize that in order to decrease calculation error, it is desirable to decrease truncation error and error amplification factor in small and medium step sizes.

根据分析可知，在中小步长时减小本步截断误差和误差增长因子对减小计算总误差是有效的，而在大步长时减小误差增长因子比减小本步截断误差更有效。

The poison error along disk tangential direction decreases the DPD signal amplitude,and the factor is 1.52T when position error is less than 25%.The radial poison error increases ...

计算结果表明：沿盘片切向的位置误差使DPD的幅值变小，在25%的范围内DPD的幅值随切向位置误差的变化系数为1.52T；沿盘片径向的位置误差使DPD产生直流偏置，在50%的范围内DPD直流偏置随径向位置误差的变化系数为3.8T。

The meshing of FG drives with misalignment, which includes shaft angle error, shaft crossing error and axial shift error, is analyzed by using the continuous tangency of pinion and FG to obtain the equations of tooth contact analysis, and visualizing contact path, and studying the effect of errors on the shift of it. A computational procedure of tooth contact is developed in this paper.

在具有安装误差的面齿轮传动的啮合分析中，建立了在有轴交角误差、轴交错误差和轴向偏移误差情况下的齿面接触轨迹所满足的方程，提出了一种求解接触点参数的策略；对齿面接触轨迹进行了可视化；分析了各类误差对齿在接触轨迹的影响。

Anna: No, I've got a hangover.

不是，我昨晚宿醉了。

We head into the mountains in Su's new Land Cruiser, stop for lunch at a scenic restaurant and then hang around drinking beer and eating fruit as two of his employees attempt to lure the birds with a tape recording of the fowl's mating call.

我们坐上苏的巡逻车向山顶出发，在一家风景优美的餐馆吃了中饭。然后我们喝着啤酒吃着水果四处逛。