计算误差

The paper intorduces analysis and calculation for the uncertainty ofmeasutement on the basis of requirement of "'93 Intermational quidebook", according toclass jz theodolite standing disk index for the JJ G414-94 《 photology theodolite》 verification and calibration, in the automatic compensation.

介绍了按照JJG414—94《光学经纬仪》检定、校准J2级经纬仪竖盘指标自动补偿误差时，依据"'93国际指南"要求，对其测量不确定度进行的分析、计算。

Finite element methods are analyzed, where the stress is approximated by the discontinuous Raviart-Thomas element of lowestorder,and the velocity by the piecewise constant element,and the Lagranian multiplier by the trace space of the piecewise continuous linear element.

然后发展其有限元方法：对应四变量分别用间断型Raviart-Thomas最低阶元，分片常数元，连续线性元和连续线性元的迹空间，我们获得了稳定性和最优误差界，通过后处理办法，我们得到一个适合于计算的速度-压力格式，该格式可视为"mini"元方法的一个变形（本文格式中引用了局部投影算子）。

This paper mainly introduces intelligent measurement diameter runout of pitch circle in gear by means of computer.

主要介绍了采用计算机智能地测量齿轮齿圈径向跳动误差，编写了计算机程序对测量数据进行采集、处理、显示、分析与计算，最终得到了有效的结果。

Considering the ionospheric refractive index in geomagnetic field, the radiowave polarization plane rotation has been calculated. For linear frequency modulation pulse signal, the expression of Doppler shift error due to ionospheric dispersion characteristics is derived.

本文还计算了考虑地磁场时电离层双折射指数特性引起的电波极化面旋转角，推导出对于线性调频脉冲信号电离层介质色散特性引起的合成孔径时间内多普勒频移误差的表达式。

The helicopter blade running elevation measurement is the kernel part of helicopter blade dynamic balance experimental platform system, also is the main part of this dissertation.

论文从国内外对旋翼共锥度的测量方法出发，对几种测量方法进行比较分析，最后确定采用激光测量的方法。对激光测量的测量原理和测量误差进行了分析，对系统关键参数进行了计算。

Meanwhile, we also provide methods for computing the weighted polar decomposition, and study error bounds for the approximate generalized positive semidefinite polar factor and perturbation bounds for weighted polar decomposition in various norms.

针对这个新的矩阵分解，我们证明了其唯一性定理，给出了其唯一性条件，讨论了其极因子的最佳逼近性质；同时，我们还探讨了矩阵加权极分解的计算问题，研究了由迭代算法引起的极因子的误差界，极因子在各种范数下的各种形式的扰动界等。

The frequency spectrum of the electric field, produced by an electric current dipole on the surface of the uniform conductive and polarizable earth, is transformed into time spectrum, with or without some random error added, and the time spectrum is then inversely transformed into the frequency domain.

基于层状导电和可极化大地表面，电偶源电场的时间谱在无随机干扰和有随机干扰时，进行频谱转换的计算结果，证明了时—频转换的误差传递问题严重。

The calculating results of precipitable water by using our empirical expressions agree well with the actual ones.

仅利用地面水汽压计算出的整层大气可降水量和有效水汽含量，同实际情况符合得很好，平均相对误差普遍小于15％。

In this study, the calculation errors of wellbore pressure gradient are analyzed, and a correction formula is proposed.

本文分析了数值模拟中井筒压力梯度产生误差的原因，在此基础上提出了计算井筒压力梯度的校正公式。

Precision estimation of principal direction is more objective by using principal stress deflection error proposed in this paper.

提出了主应力的偏角误差概念及其计算方法，使主应力方向的精度评定更加真实客观。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷