测量误差

While the plane is measured by using the cylindricity measuring instrument and square ,the data acquisition should be done at the same time.

首先利用圆柱度仪和角尺对被测件进行测量，同时采集原始测量数据，然后利用最小二乘法实现平面度误差的评定。

By means of declinate optical triangulation measuring instrument structure which is firstly proposed, the measured area and resolution of this measuring system are greatly increased, and the high accuracy non－contact measurement of the planeness of a large area plane is realized.

提出的虚拟精密基准的建模与误差补偿技术，解决了在非精密基准上实现精密测量的问题，研制的系统利用现有平台可实现对太阳帆板平面度的高精度测量。

The method that measuring horzontal component of the earth magnetic field with digital quantometer is introdnces, the computational formule are given, systematic error are discussed, the advantages of the this method with tangent galvanometer measuring ho

摘要介绍了用数字冲击电流计测量地磁场水平分量的方法，给出了计算公式，对系统误差进行了讨论，简述了该方法与用正切电流计法测量地磁场水平分量的优点。

The measuring results of the deviations of the characterized curves of three typical helicoidal surfaces in this cylindrical-coordinate measuring machine are described in detail.

详细地阐述了在所研制的圆柱坐标测量机上对几种典型复杂螺旋曲面的特征线误差的测量结果。

By removing the photocurrents caused by the ambient light among the noise-included signal light, the two photocurrents from the dual-junction sensor of the signal light was measured and their logarithmical ratio was first obtained.

通过对不同峰值波长和光强的高斯函数环境光下传统方法波长测量精度的仿真分析表明，环境光与被测光峰值波长相差越大、光强比越大，则测量结果的误差就越大。

Researches are made to find out the active tracing measurement strategy of crankshaft roundness error during noncircular grinding process .

本文对曲轴连杆颈非圆磨削过程中圆度误差的在线跟踪测量策略展开研究，推导了测量系统跟踪运动方程，针对在频域分析时对3个传感器之间线性相关性的要求，论述了满足均匀采样的约束条件。

A comparison is made between total integrated and spectroradiometric methods of measuring illuminance.

一导言 用不同的方法测量同～个量，常常被用来检验测量方法中是否存在系统误差。

The results showed that:(1) some governing points, which were measured by submeter precision GPS, were utilized to correct the 1 m precision remote sensing image and it could satisfy the desired precision of geometrical correction, therefore, this method could be used as geometrical correction in the region where was short of the big scale relief map;(2) the density of the original data was the main factor to affect precision of the volume, and the precision of the calculated volume of earthwork could be improved to more than 90% when using the test points and feature points; the sparser the data density were, more significant could be improved; On the base that elevation of test points were measured by the submeter precision GPS, the error of the volume, which was produced by vectoring relief map to obtain DEM, could be calculated, and the calculation precision of the earthwork could be improved markedly.

结果表明：利用平面精度达亚米级的GPS测量控制点坐标对1米分辨率的遥感卫星影像进行几何校正，能够满足其几何校正的精度要求，可以解决缺乏大比例尺地形图地区的高分辨率遥感卫星影像的几何校正问题；通过对模型数据的分析，数据密度是影响体积精度的主要因素，利用检测点高程和特征点可以提高土方量计算的精度，使土方量计算的精度达到90％以上，数据密度越稀疏，精度提高越显著；采用高程精度达厘米级的RTK(Real Time Kinematic实时动态差分)测量检测点的高程，对用地形图扫描矢量化形成的DEM模型进行检测求出误差体积，可以大大提高土方量的计算精度。

Neuronavigation can offer accurate location and measure . 2. 4 spaces of sellar area could be viewed and controlled satisfied via supraorbital keyhole approach .

结果：1、导航系统的实时定位功能非常好，误差较小，在测量过程中具有良好的持续准确性，本实验颅内的测量结果可靠。2、眶上&锁孔&入路可以通过鞍区常用的四个手术间隙到达靶区进行手术，对Willis环相关血管的显露和操作空间良好。

It is shown in this paper that distributions of electric fields in five measuring slots of Uster Evenness Tester,and the errors caused by uneven electric fields were analysed.

文摘：实测了乌斯特纱线均匀度试验仪上5个电容测量槽的电场强度分布，分析了由测量槽不均匀电场所引入的误差。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。