计算误差

By rotating the X-axis of the measurement coordinates, the straightness data of each generatrix are transformed into a unified 3D coordinate system whose Z-axis superposes the least square mean axis calculated with the data of the multiple generatrices. The computer simulations and experiments prove that the construction by rotating the abscissas can effectively eliminate the distortion of the constructed profile.

通过测量坐标系中X轴的旋转，将各条母线直线度偏差数据统一到同一个空间坐标系中，采用两端面圆的最小二乘轴心的连线作为零件轴线，消除了直接构造所带来的表面变形，并能进一步计算出被测内孔的直径、圆度和轴线直线度误差，使测量系统集成化和多功能化。

From the aspect of electrical power system structure, the performance of signal sampling installment and the electromagnetic compatibility, discussed the primary factors which influence protective device reliability and the sensitive, proposed the problem of guaranteed its reliability and its sensitivity that should be adverted, had determined the active power selection selective leakage protection hardware architecture, the software computational method, and the method through the software proofread system angular error, have developed the intelligence protection system based on the AVR high speed MCU and the CAN bus.

从电力系统结构、信号采样装置性能和电磁兼容性的角度出发，论述了影响保护装置可靠性和灵敏性的主要因素，提出了保证其可靠性和灵敏性应注意的问题，确定了有功功率选线的选择性漏电保护的硬件结构、软件计算方法，和通过软件校正系统综合角误差的方法，研制了基于AVR高速单片机和CAN总线的智能保护系统。

The effect of the surface albedo is considered secondly as an error correction so as to obtain the net solar radiation at various surface albedos.

然后将地表反射率的影响作为误差项进行订正，从而得到各种地表反射率条件下的晴天地表太阳净辐射的计算方法。

The parameterization of clear-sky surface solar net radiation under the conditions of various albedos is obtained through the error correction due to albedo variation.

然后将地表反射率的影响作为误差项进行订正，从而得到各种地表反射率条件下的晴天地表太阳净辐射的计算方法。

In this article it analyses some kinds of difficulties in calculation of location error anatomizes the essentials of the doubtful and difficult factors and then puts forwards solving ways .

本文分析了几种定位误差计算的疑难问题，分析说明了解决的思路，提出了解决的方法。

Chapter six enunciates the design for separate modules of the data processing system. Phases straight lines model and not straight lines model based on BP are used to correct the physical parameters and eliminate deflection. The least-square is used to calculate the efficiency of generators.

在物理量校准中利用分段直线回归和基于神经网络的非线性回归，对模拟量进行了非线性在线校正来消除误差；在发电机效率计算中利用最小二乘法实现了发电机效率回归。

The results are agreement with theexperimental data, the relative error is less than 2 percent. After analyzing theenergy effects in the intercalating procedure, the index of characterizing thedistance energy for RECGIC,τ, were calculated.

考虑电子效应的影响，进一步补充了稀土氯化物-石墨层间化合物的结构模型，计算了RECGIC的特征层间距〓值，与实验值吻合较好，其相对误差小于±2％。

So the course for searching the occluded features is mainly based on the reliable features.

文中分析了辅助计算点的测量误差所带来的搜索定位困难，信用度因子的引入可以弱化不精确辅助点对搜索结果的影响，使搜索过程主要依赖可靠的点进行。

A series of different postures are measured,then the platform's actual mechanism parameters are ...

针对测量随机误差对测量计算结果的影响，提出了改进措施。

After checking the evaluating results computed in ANN, it is found that they are similar with that in the Principal Components Method. Then the predicting model is built, which of the error is found smaller than 10%. So it is fully proved that the ANN model is feasible in the studies of quantitating the water resource integrative carrying capacity in karst area.

为了验证神经网络模型的可靠性，将神经网络模型评价的结果与主成分分析法计算的结果进行比较，两种方法的评价结果大致相同；所建预测模型经检验误差小于10%，精度较高，充分说明人工神经网络模型在喀斯特地区水资源承载力的量化研究具有较强的可行性。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。