精度

The new system calls can efficiently adjust the time and frequency of clock, and improve the precision of clock output signal. The new time server can satisfy more time requirements.

这些新的系统调用对钟的时间和频率修正更有效，精度更高，这样就提高了时钟服务器的精度，可以为用户提供较高精度的时间源，以便满足各种时间要求。

In order to improve the precision of clock of time server, it is necessary to create a new system calls to adjust clock time in operation system. Because the traditional system calls will cause the instability of clock output, and increase the complexity.

为了使时钟服务器的时钟精度达到更高的精度，用传统的系统调用宋完成计算机时钟的调整和偏移会造成时钟精度的不稳定，并且增加了复杂性，因此需要在操作系统内核创造新的系统调用来完成时钟调整。

The precision of electronic angle gauge is 1Π 7 000 and the total error of Bitterlich angle gauge is 1Π 32. S o the precision of the electronic angle gauge is 200 times as high as general angle gauge and its velocity is higher.

经过分析，电子角规测树精度为1/7 000，而比特利希角规测树精度总误差达1/32，电子角规的测树精度比普通角规高出200倍以上，其速度也较快。

High precision: Advanced testing instrument,together with the entire manufacturing techniques combining the latest fully automatic wire-stretching machines,continuous annealing lines,molds and lubricants,guarantees precision,1000N/m strength,wire diameter tolerance within /-0.001mm,good vertical exceeding 98% good surface quality,high precision,high efficiency and non-sticking.

精度好：先进的检测设备，加上全部采用目前国外最先进的全自动伸线机、连续退火生产线、模具、润滑剂到全套生产工艺。从而确保精度、强度可以达到1000N/m ，线径公差控制在？0.001mm 以内，垂直度好，可以达到98%以上，广泛适用於各国不同型号的慢走丝切割机床。表面质量好，精度高，可以达到效率高，不返粘效果。

We adopt advance technics and equipments from Japan with Slow-Feeding Wire-Cut Machine,Spark Machine,and introduction high precise Injection Molding Machine from Taiwan,with a dust free workshop.

配置有日本进口沙迪克慢走丝、镜面火花机，并引进台湾原装进口高精度注塑成型机，并有无尘注塑车间，为客户提供的高精度要求产品，并可根据客户提供的元素设计属于客户自己主权的高精度产品。

operation process and arithmetic of the two-position gyro-based north seeker are introduced.

文章介绍了二位置陀螺寻北仪工作过程及算法原理，它采用陀螺仪在相差180°的两点上采样相互对消陀螺常值漂移的方法，提高寻北精度；其突出特点是结构简单，实现方便，精度较好；为了提高寻北精度和缩短寻北时间，文章找出误差源中的转位误差，并分析了转位误差对寻北误差的影响，推导了误差公式，得出转位误差引起的寻北误差是一个常量的结论，同时提出了转位误差的测量与补偿方法。

Then the optimal two-position alignment and drift measuring method, which is commonly used in land-based vehicles system, has been studied theoretically and experimentally.

实验结果表明路谱测量系统的水平对准精度优于12，航向角对准精度优于1.2′，三个激光陀螺的常值漂移标定精度优于0.023′/hr.7。

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。

Model of self-generation of angular positioning precision during mutual lapping machining process for end-tooth indexing table was built.

利用基于误差自去除能力的加工精度自组织机制，不需要精度源，在一定条件下是获得高精度的有效方法。

Every machine is inspected by the renishaw laser intervervrne instrument which can amend the screw-pitch error,recrse clearance,positioning accuraacy of the machine.

每台机器均使用雷尼绍双频激光干涉仪校正，精确的对螺距误差、定位精度、重复定位精度等做出检验补正，以确保机器之动态、静态稳定性及加工精度。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。