查询词典 measuring error

Initial stage At the initial stage of the design of the new measuring device we have to set the limit of positional accuracy which the measuring device should achieve.

2.1 。初始阶段在最初阶段，设计新的测量装置，我们已订定限额的定位精度，其中测量装置应达到的目标。

A new approach for measuring metal linear expansion coefficient is presented where CCD data collecting system is used and the single slit diffraction principle referred to in measuring the elongation extent to which the metal body expanses as the temperature increases.

根据单缝衍射原理，利用CCD数据采集系统来测量金属体随温度升高的伸长量，给出测量金属线膨胀系数的一种新方法。此方法采用CCD图象处理技术与计算机技术相结合，实现了数据采集、计算处理自动化。

By means of optical microscopy, electrical conductivity measuring device and temperature measuring device, the microstructure, electrical conductivity ,solidus temperature, spreading property of solder were analyzed.

用光学显微镜、电导仪、热分析仪等对合金的微观组织、电导率、熔点、铺展性能进行了分析，并与Sn37Pb进行了对比。

Finally, based on the geometric model and arithmetic for the coordinates of spherical circular hole series, this paper demonstrates how to convert the planar measuring and calculating results to three-dimensional measuring results, and exhaustive experiment results validate the precision this measurement could achieve.

最后建立了球面孔系坐标的几何模型及算法，实现二维测量到三维测量的转换，并以详尽的实验结果对本测量系统所能达到的精度进行验证。

Real stereography system was calibrated with the measuring value ofcontrol points.Measuring values were agreed very well with theoretical calculatedvalues.Further absolute errors and relative errors of the measured velocity formentioned experinent were provided according to the synthetical analyses tomeasurement results and theoretical calculated values.

并且用定位板测量参数对体视摄影系统进行了校验，理论分析和测量结果符合的相当好；在此基础上，依实际流场测量结果和理论估算相结合的综合分析，给出了速度场测量的绝对误差和相对误差。

A computer-aided local transient flow property measuring system was developed using a high speed CCD camera coupled with optical fibers in order to study the Gas-liquid-solid three-phase jet loop reactors. SnO2 crystal films were orientally deposited on the alkoxysilane molecule-coated hydroxyl glass substrates so as to prepare surface-marked particles as the tracers. An image analysis system was established to identify different phases. Stroboscopic photography was utilized to extend the measure range. The developed measuring and analysis system was capable of determining accurately the local transient flow property in a G-L-S jet loop reactor. Based on the above system, local transient flow properties of gas, liquid, and solid phase were measured and studied the influences of fluid property, operation and configuration parameters on the reactor.

以气液固三相喷射环流反应器为研究对象，将高速CCD和光纤束耦合制成局部瞬态流动特性微机数据采集及图象处理系统，利用MPS硅烷分子在带有羟基的玻璃基底上的自组装引导SnO2晶态膜层在功能化表面上进行沉积，以获得表面标记的示踪粒子，解决图象处理技术与相的识别的问题，利用频闪技术拓展了测量上限，得到可以准确测定气液固三相喷射环流反应器中局部瞬态流动特性的测试系统；采用上述测试技术进行喷射环流反应器中局部气相、液相与固相瞬态流动特性的实验研究，并考察物性参数、操作参数与结构参数的影响规律。

Summing up the flow of forest measuring effectively and accurately by 3D laser scanning imaging system,the method of indoor work data processing,the method of picking up factors of forest mensuration as well as the method of measuring volume of stumpage and crown were summarized by the experiment in Xiaolong Moumountain of Gansu Province.

通过在甘肃省小陇山林业局的试验，总结了三维激光扫描成像系统进行精准测树的流程、内业数据处理方法、提取各种测树因子的方法、测量立木材积以及树冠体积的方法。

At the same time we study the subdivision of measuring data point and imitation of measuring track.

同时对测量数据点的细分和测量轨迹仿真进行了研究。

In addition,make the coordinate normalization of carrying on different systems of coordinates of measuring point many times,After reaching the same system of coordinates in unison,give and carry on the treatment method to the data of overlapping based the characteristic of measuring the data.

此外，对多次测量数据点进行了不同坐标系的坐标归一化，统一到同一个坐标系后，针对测量数据的特点给出了对重叠数据的处理方法。

The measuring principle, design method and configuration of the system are introduced. Then, the measuring system is calibrated by testing Lead Zirconate Titanate ceramic and Lithium Tantalate crystal with the known pyroelectric coefficients as the references. In addition, the pyroelectric coefficients of several common ferroelectric thin films such as PZT, PVDF (poly-vinylidene fluoride) and BST are tested.

介绍了该系统的测量原理、设计方法及组成，用已知热释电系数值的锆钛酸铅陶瓷及钽酸锂单晶作为参考样品对系统进行了调试，并对PZT、聚二氟乙烯及钛酸锶钡等几种常见的铁电薄膜材料的热释电系数进行了测试。

I can not negligent, he should do what?

我不能不在意了，他要做什么呢？

It is very dangerous to swim in the river alone.

一个人到河里游泳是很危险的。