重复误差

And what's interesting about this experiment is that it's not an aberration.

有趣的事情是，这个实验不是误差，它被一再重复。

Many of those would require complex processing and a large number of iterations to reduce the channel estimation error.

许多人将需要复杂的处理和大量的重复，以减少信道估计误差。

The birth and evolution of corrugation are studied under the quasi-static condition by elasto-plastic rolling contact method.

波磨的形成是残余应变叠加的结果，忽略残余应变，在重复加载中计算结果会产生较大的误差积累。

This design takes the diesel cyclinder tank for the clamping and locating device of tank boring and designing the clamping regulations of arts and crafts of tank, we take two cylinders and one face to locate which can limit six free dgrees In order to reduce errors of tank during processing,we take standard and concurrent principle,unify principle,principle with each other for basis and selection of rough basis into order to make the orientation tight enough,it is required to insist in the principle of using the unrepeated coarse beach mark as possible as you can.

本设计以柴油机汽缸箱体为例，对箱体镗孔的夹紧和定位装置进行工艺分析和夹具的设计。在对此箱体的工艺规程采用两销一面对其进行定位以限制其六个自由度。为减少箱体在加工过程中的误差，我们考虑基准的重合原则，统一原则，互为基准原则以及粗基准的选择原则，为使定位稳定夹紧可靠，要求所选用的粗基准尽可能不重复使用原则。

In order to avoid repeating job in the most extent and improve efficiency of design, using the idea of structure parametric design. Based on APDL, the FEA drill chuck model can be easily created by adjust several geometric parametric and the process of FEA is automatically executed.This paper discusses the affections of different parameters for the stress capability of drill chuck. The high efficiency drill chuck strength analysis system can help designer develop new products.

为避免重复工作和提高分析效率，本文结合ANSYS提供的二次开发参数化设计语言APDL，实现了对有限元分析软件ANSYS命令流的调用，解决了通用程序与专业需求之间的矛盾，完成了钻夹头有限元参数化程序分析，对钻夹头的强度性能进行了分析和仿真；模拟钻夹头实际生成过程中的性能测试试验，探讨加工误差引起的不同装配角度等参数对钻夹头强度性能的影响。

In some important cases, if the experiment is repeated many times, the variations in the results are found to be distributed according to a particular mathematical law –the normal error law.

在一些重要的情形中，如果多次重复一个实验，会发现其结果的变化按照某个特定的数学法则——正态误差法则分布。

With this doublecheck, the percentage of error did not exceed 0.5 percent, and there was not a single report of incompatibility during the course of the war.

通过这种重复实验，误差不超过0.5%，并且战争期间没有哪份报告是不一致的。

The repetitive control is introduced for current control of active power filter to eliminate the steady state periodic error.

针对有源电力滤波器的被控电流为周期变化的正弦量，提出引入重复控制对有源电力滤波器电流进行控制，以减小系统的稳态误差。

In order to reduce the periodic current tracking error of the deadbeat control when compensating abruptly changing nonlinear load current, a repetitive controller is plugged into the deadbeat controller. Also, the repetitive controller can alleviate the parametric dependency of the deadbeat control and eliminate the effects on compensation performance caused by the uncertainties in the system.

另外，为了降低无差拍控制对系统参数的依赖型和系统中存在的不确定性对补偿性能的影响以及减小在补偿电流变化剧烈的非线性负载电流过程中存在的周期性的局部跟踪误差，本文在无差拍控制器的基础上，又提出了基于无差拍和重复控制的复合电流控制器。

The results showed that its maximum relative error of 2.82%, the relative standard deviation of 0.48% when determining the same sample. The method has good veracity and precision.

结果表明，测定样品的最大相对误差为2.82%，重复测定同一样片的相对标准偏差为0.48%，方法的准确性和精密度良好。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐