精度

In this paper,the aerostatical bearings are identified by the spring supports, so that the stiffness of the bearings can be represented with explicit functions.

精密离心机是测试惯性导航仪表的大型精密设备，它的研制成功将对提高我国惯性仪表的精度以及战略导弹的命中精度起重要作用 [1]。

According to the working procedure chart of theZH1105W diesel engine's gear cap analysis workpiece's precision, the surface roughness, thespecification, the processing spot size, the shape structure,material degree of hardness, the work piece rigidity and thedifferent of the components batch size to definite technique andtechnological process, determine aggregatemachine-tool's overall plan. Consider to theirregularity components but have high accuracy holes to beprocessing. So,"two holes at aface" is the best localization plan.

根据ZH1105W柴油机齿轮室盖的工序图分析其精度、表面粗糙度、技术要求、加工部位尺寸、形状结构、材料硬度、工件刚性及零件的批量的大小不同，确定被加工零件工艺方法和工艺过程，确定该组合机床的总体设计方案；考虑该零件表面结构的不规则性但有较高精度的孔需要加工，定位基准选择&一面双孔&是最佳的方法。

Aiming at phase difference measurement of mass flowmeter,based on actual signal and the zero passage method,the amendatory zero passage method is presented.

针对质量流量计相位差测量，从工程中的实际信号入手，结合虚拟仪器相位差检测的过零法，提出了一种设定阈值的改进型过零法，阐述了算法的检测原理，讨论了影响相位差检测精度的因素，提出了改善精度的技术措施和原则。

It shows by theory and simulation that the location precision of the improved and conventional Gauss-Newton algorithm is equivalent but the location precision of the rear two algorithms is baddish under the same condition, i.e., the same measurement error and the same base-stations for location.

理论分析与仿真结果表明，在相同的观测误差和定位基站情况下，改进的和常规的Gauss-Newton迭代算法的定位精度相当，而相交圆弦线方法和最小二乘估计方法定位精度较低。

On August 24, an external diameter amounts to 1.63 meters, precision exceeds the bearing of biserial cylinder roller of P4 class, get offline smoothly in LYC company, fill home is blank.

LYC企业趼发岀境内最大最高，细度轧机轴承-精度工序外径产品摘要：8月24日，一套外径达1.63米，精度超过P4级的双列圆柱滚子轴承，在LYC公司顺利下线，填补了国内空白。

Therefore, the die's initial blanked accuracy depends on the accuracy of manufacture, quality and so on.

因此，冲模的制造精度与质量等因素决定了冲模的初始冲压精度，也造就了冲件的初始误差。

The beam pulsing subsystem generates three beam pulsing signals to chop and buncher the beam,and one "start" signal for lifetime measurement.The time measurement subsystem measures the time interval of the "start" and the "stop" signal from PMT.

其二为高精度时间测量电子学系统，该系统必须对脉冲调制电子学系统给出的时间起始信号和探测器给出的时间停止信号进行高精度的时间间隔测量，以达到谱仪装置好于200ps的时间分辨。

During the period of the activity of reforming the traditional calendar, Xing Yunlu only reformed the calendar according to the calendar idea established in his book Gujin Lüli Kao (GJLLK, Investigation into Harmonics and Calendrical Astronomy from Antiquity to the Present, c.1600). Combined with the analysis of Xing Yunlu's eclipse records collected from the Mingshilu (True Records of the Ming Dynasty) and Mingshi, we pointed out that Xing Yunlu's had not made ultimate improvement to the traditional calendar in his activity of calendar reform.

结合对邢云路在钦天监参预改历活动中预报日月食记录精度的分析，指出：以邢云路为代表的传统历法家在钦天监进行的历法改革总体来说起色不大，除在个别月食预报以及日食食分的预报结果上好于《授时历》的预报结果外，其他预报结果的精度均不如《授时历》，而且从总体上看邢云路新法的水平还不如当时行用的《大统历》，尤其是邢云路预报天启元年四月朔(1621年5月21日)日食出现差错而宣告了他依据传统历法进行改历努力的失败。

With the semiconductor component being devlopped,it is forming a new type of the Releases on the basis of calorifics and electromagnetism. It overtakes the disadvantages of the calorific-electromagnetic Release which it is difficulty to be adjusted and its precision is low.

半导体脱扣器是在热-电磁式脱扣器的基础上，随着半导体元件的发展而形成的一种新式脱扣器，半导体式脱扣器克服了热-电磁式脱扣器整定校正困难、精度低的缺点，它的精度高、耐恶劣环境能力强。

This paper introduces the subdivided technology of stepping motor using s-c processor, and discusses the subdivided technology project of stepping motor, It come out a solution about the subdividing drive circuit of stepping motor using current compose vector circumrotate.

本文介绍了用单片机实现步进电机高精度细分技术，在对现有的步进电机的细分技术方案探讨的同时，提出了步进电机的细分驱动电路通过电流合成矢量的旋转来实现的解决方案，使步进电机的细分技术提高到了高精度细分的水平。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。