精度

The conclusion is provided as a theoretical basis for practical application. Furthermore, from both sites of experiment and theory, the kinematic accuracy and laser scanning accuracy of the LPS-600A machine are studied.

从理论和实验两方面研究了机械运动精度及激光束扫描精度的影响因素，利用激光双频干涉仪对LPS-600A的机械运动精度进行了测试。

For example, to remove the seeable particulars may need 25 um filter, to remove the cloudy material in the liquid may need 1 to 5 um filter, and 0.2 um filter may be required to remove micro bactria.absolute precise / nominated precises.

比方，要除去肉眼可见的颗粒，要选用25微米过滤器；要除去液体中云状物，要选用1或5微米过滤器；要滤除最小的细菌则需0.2微米的过滤器。问题在于有两种过滤精度单位：绝对精度／公称精度。

As for the high precision positioning of underwater targets, the GPS sonobuoy technique has two bottlenecks: high precision system clock synchronization and high accuracy time delay estimation.

为了实现水下载体高精度的定位，GPS声纳浮标需解决两个方面的技术难点：高精度的系统时钟同步和定位信号的高精度时延估计。

In addition, the working principle of the instrument for measuring spherical curvature is described, and the scheme of structure base on this working principle is designed, and then the accuracy analysis of it is proved in details.

文中详细阐述了可变径球面曲率测量仪器的工作原理、系统选型、结构设计，并详细对测量仪器进行了精度分析及精度综合，指出了影响仪器测量精度的重要因素。

The system schemes are selected in descending probability order. The stopping rule for the state selection is the index accuracy. The relationship between scheme selection accuracy and the forecasting time is also studied. The results show that only a small number of system schemes are required to achieve the high accuracy of the short-term reliability index. Hence, evaluation can be performed in the online environment. The proposed algorithm is applied to the IEEE-RTS.

按照概率大小进行系统状态选择，按照指标精度进行状态截止，并研究了状态截止精度随预测时间的变化关系，表明短期评估只需选择少量系统状态就能满足较高的评估精度，具备在线应用的前景，通过算例IEEE-RTS进行了验证。

Equal-accuracy digital tachometer not only have the higher of measurement accuracy, but also can be keep equal accuracy is in the entire measuring range.

而等精度数字转速表不仅有较高的测量精度，而且能够在整个测量范围内保持相等的精度。

Ds Explained the technology of tolerance design;Aimed at Antenna Structure based on modularized assembly, by referring to the random numbers based on Uncertainty Theory that accord with tolerance distribution rule and using Monte Carlo simulation, a simulated analysis and mathematical statistics of the Antenna-Structured Precision Information Model terminal error have been done.

对产品精度信息模型的公差分析和公差综合技术进行说明；针对模块化装配的天线结构产品精度信息模型，基于不确定性理论的随机公差分布，利用蒙特卡洛模拟法来对天线结构的装配产品精度信息模型的终端误差进行仿真分析和综合。

The spindle flowmeter and the especially designed totalizer highly improve the precision of measurement , and the measuring system made up of them is very easy to use.

采用纺锤体流量计作为测量前端，成功的解决了传统节流装置测量精度低、压力损失大等缺陷，配以专用的积算仪系统，不仅避免了通用变送器与通用积算仪之间多次A/D、D/A转换所造成的精度损失，提高了测量精度，还简化了系统结构，使仪表的安装更加方便，具有很高的实用价值。

The method of equal accuracy frequency measure can remove the errors of unitage and keep the high accuracy constant in the whole measure frequency segment. So the signal frequency has measured is high or low can't influence its accuracy.

等精度频率测量方法消除了量化误差，可以在整个测试频段内保持高精度不变，其精度不会因被测信号频率的高低而发生变化。

CPU of airborne computer implements existing data acquisition of unpiloted vehicle with low efficiency. To improve the efficiency and to solve problems on reliability, real time and precision, the design of acquisition system based on DSP which can make a circuit acquisition for 54 channels data is put forward. After acquisition, the data can transfer between the system and CPU of airborne computer through dual-port RAM. The software and hardware methods to revise ADC on DSP are described. Evidences show that the system can meet with the flight control system on reliability, real time and precision.

现有无人飞行器数据采集均由机载计算机主处理器完成，效率较低，为了提高效率，解决数据采集的可靠性、实时性及精度等问题，设计了一种基于DSP处理器的数据采集系统，该数据采集系统能够对54路模拟量进行巡回采集，给出了系统的软硬件实现方法，在数据采集结束后，系统通过双端口RAM与机载计算机主处理器进行数据传递；为了提高DSP片内ADC的采集精度，给出了片内ADC的软硬件校正方法；实验证明，该系统具有较高的可靠性，能够满足飞行控制系统对传感器数据采集的实时性及精度要求。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。