误差因素

This paper is on the basis of principle of trigonal height measurement of total station,combined working practice,and analyzed the influence to trigonal height measurement precision of total station by the law of error propagation,we concluded the factors influence the precison of trigonal height survey of total station,so as to call attention to us in our jobs.

根据全站仪三角高程测量原理，结合工作实践，通过误差传播定律对影响全站仪三角高程测量精度进行分析，找出影响全站仪三角高程测量精度的因素，以便在测量工作中能够提高测量精度。

Are due to the practical limits to which correction can be made for systematic effects, such as offset of a measuring instrument, drift in its characteristics between calibrations, personal bias in reading an analogue scale or the uncertainty of the value of a reference standard.

其它非理想性因素是由于对系统效应的修正产生的实际限制，比如测量仪器的误差，两次校验之间的性质偏移，个人读取量数的偏差或者参考标准值的不确定性。

Other imperfections are due to the practical limits to which correction can be made for systematic effects, such as offset of a measuring instrument, drift in its characteristics between calibrations, personal bias in reading an analogue scale or the uncertainty of the value of a reference standard.

其它非理想性因素是由于对系统效应的修正产生的实际限制，比如测量仪器的误差，两次校验之间的性质偏移，个人读取量数的偏差或者参考标准值的不确定性。

It puts emphasis on the principle and the function of the CCD vidicon in the application of the jointing of electron beam, the selecting of the method of examining temperature and the composing of the software, in addition it analyzes and discusses several important factors influencing the temperature examination and the way to induce the errors.

其中比较详细的介绍CCD 摄像机在电子束钎焊温度场检测应用中的原理和功能，测温方法的选取及其软件的编程工作，另外还着重分析讨论了电子束钎焊过程中影响测温的几个重要因素以及减小误差的方法。

Dept.of surv.

然而EDM作为一种光学和电子器件组成的测量仪器，由于生产、运输、使用过程中的误差、震动和环境因素的影响以及电子器件本身的老化等，导致仪器的部分性能指标发生变化，最终是使测距仪测量观测值的精度受到影响。

This paper analyses and proves that the restoring saturation coefficient α of one dimension extra-saturation sediment discharge method and the modified coefficient K of the quasi-hydrostatic settlement method are reciprocals each other.

分析论证了一维超饱和输沙法恢复饱和系数α与准静水沉降法修正系数K互为倒数；在分析影响α值变化主要因素的基础上，建立了计算恢复饱和系数α的数学模型；通过误差验证分析和经过几年生产设计部门的使用情况证明，模型的研究思路正确，精度、可靠度均满足设计要求，可供生产设计单位使用。

This paper analyses and proves that the restoring saturation coefficient a of one dimension extra-saturation sediment discharge method and the modified coefficient K of the quasi-hydrostatic settlement method are reciprocals each other.

分析论证了一维超饱和输沙法恢复饱和系数 a与准静水沉降法修正系数K互为倒数；在分析影响a值变化主要因素的基础上，建立了计算恢复饱和系数 a的数学模型；通过误差验证分析和经过几年生产设计部门的使用情况证明，模型的研究思路正确，精度、可靠度均满足设计要求，可供生产设计单位使用。

In this paper, models are divided into two patterns, fine-grain and coarse-grain, according to the amount of data communication and are employed for the grid computing case studies.

浮点计算机的计算精度是影响数值模式性能的一种因素，在进行并行计算的过程中，更容易对比模式多CPU计算结果和串行的结果，研究其受舍入误差的影响。

The major issues with GPS, namely 2 feet vertical guidance accuracy near the runway threshold and the integrity of the system has not been able to match historical ICAO standards and practices.

gps主要的问题是，跑到末端的垂直导航精确度是2英尺，系统的完整性（就是没有人为因素可以增加导航误差。。

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