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This paper gives the time domain integral constraints of the feedback control systems tracking error that arise from the presence of stable zeros on or near the jω-axis, which shows that for a linear time invariant system, in order to guarantee the stability of the closed-loop system, the time domain integral constraints must be satisfied by the tracking error.

本文给出了反馈控制系统接近虚轴或虚轴上的稳定零点对跟踪误差的时间域积分约束。这一时间域积分约束是任何一个线性时不变系统为保证其闭环系统的稳定性，其跟踪误差必须满足的。

Four sub-channels are used in the forward equalizer and the coefficients of the equalizer are adjusted by the error of constant modulus algorithm. The advantages of FSE and DFE are integrated. The ideal equalization can be obtained as long as the length of the equalizer equal to or bigger than that of the channel, and the algorithm has the characteristics of faster convergence and smaller mean square error.

该算法前馈滤波器采用4路子信道系统模型，用常数模误差函数对均衡器权系数进行调整，综合了分数间隔均衡器和判决反馈均衡器的优点，均衡器权长只要大于或等于信道长度就能完全均衡信道，该算法收敛速度比波特间隔判决反馈盲均衡算法与T/4分数间隔盲均衡算法(T/4FSE)快、均方误差比BSDFE与T/4FSE小，且计算量不变，有利于信息的实时恢复。

But in the numerical calculation process, such as numerical differentiation, if we use these numerical methods inadequately, then it may be induced non necessary numerical error, including round off and truncation error.

因而常必须以值方法替代解析解，但是在值计算的过程中，很容引入额外的计算误差，包括舍位误差与截断误差。

A simulation model was set up. Simulation outcome shows that compensating torque can be rapidly regulated according to demands of dynamic loading.Stable-state error is less than one percent,and dynamic error is much more less than that of traditional PID.In the

建立了仿真实验模型，运行结果表明：补偿转矩能够根据动态加载的要求进行快速调整；稳态运行速度误差小于1%，动态误差远远小于传统PID控制。

The condition of the minimum relative error is theoretically given. That is the place of the balance point should be chosen according to the ratio of the measured resistance Rx to the internal resistance Rg of the galvanometer in order to get the minimum relative error.

并在此基础上讨论了滑线电桥的灵敏度及其对所测电阻Rx的影响，从理论上给出了滑线电桥最小相对误差的条件：要使滑线电桥灵敏度所引起的相对误差最小，电桥平衡点的位置应按待测电阻Rx与检流计内阻Rg的比值来确定。

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全球拉响核警报：核泄露、核块熔化，全球15%以上核弹参与，同时大面积污染土壤和水资源，全球80%以上的人遭受严重核放射性照射辐射一个300年的错误；两本解密方程书《 The Laws (ISBN1442131241)》和《 The Laws Plus (ISBN144213285X)》；三百年错误的纠正令全世界65亿人从此不用再被地震无情活埋和被海啸无望吞噬；核三剑客令全世界65亿人从此不用再遭受致命核辐射

The prominent influence of the deterministic assembly error of the ion source in the tangent plane would be canceled with an error compensation matrix.

在求解运动学方程时引入纠补矩阵，以消除离子源确定性的安装偏差对切平面定位误差的显著影响。

This, analysts believe that some of the fund set up to do the daily average error of the restrictions, but no errors in the requirements so that a total of tracking down the error may be large.

此，分析人士认为，基金有成立的目的每天平均误差的限制，但没有在规定的错误，使追捕错误总数可能很大。

In order to calibrate the model, data of six typhoons such as the flood peak and the peak time are collected to compare with the result of the simulations. The result shows that the difference of the inflow hydrograph between them is very close. The average error of the flood peak is 5.21%. Furthermore, the error of the peak time is less than one hour but Wenny Typhoon is an exception by more than two hours. Therefore, the model could be applied to simulate the rainfall event at Shih-men watershed.

为验设模式模拟精确性，本研究以具代表性之六场台风降雨模拟，针对石门水库入流历线之观测流量与模拟值比较，结果显示模拟之水库入流历线与观测值差异不大，其尖峰流量误差绝对个平均为5.21%；另在预测洪峰到达时间方面，除温妮台风迟迟2小时外，其余均在1小时内，显示本分析模式可应用於石门水库上游集水区暴雨事件模拟。

More information about this error may be available in the server error log.

关于这个错误的更多的信息，可在服务器的错误日志上找到。

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