查询词典 precision accuracy

Methods: Based on the colorreaction of indophenol reagent and ammonia in meat with the presence of sodium nitroprusside in basic medium, react time, maximum absorption wavelength, react temperature and work curve were investigated; The precision and accuracy of analytical method were researched.

研究了靛酚蓝光度法测定的样品中氨的反应时间、反应温度、最大吸收波长，对试验条件进行了优化；对分析方法的精密度、准确度进行了研究。

aining at high impedance weak signal measurement,the relations among measuring precision,input impedance and input bias current,the guard technology is applied to design a measuring circuit with guard circuit,adding a guard potential to low-impedance nodes of circuit,the effect of leakage current is reduced.using spice simulation and validates that guard circuit can increase the input impedance of the system and lower the input bias current,the results show that the guard circuit provids a valuable solution for high accuracy measurement of the high impedance weak signal.

摘 要：针对高阻抗微弱信号测量问题，对测量精度与系统输入阻抗、输入偏置电流的关系进行分析，应用保护技术设计了带保护电路的测量电路，将电路中的低阻抗节点加上保护电势，减小漏电流的影响。通过pspice仿真分析，验证保护电路能提高测量系统的输入阻抗和降低输入偏置电流，结果表明保护电路技术能实现对高阻抗微弱信号的高精度测量。

As a result, the achieved uncertainty of time measuring is±125 ps, demonstrating an accuracy improvement in magnitude of an order. The achieved precision of speed measuring is 0.1% of the scanning speed. In hardware design, the intactness of the camera's original structure has been maintained to the very extent, the facility of assembling and disassembling devices have been achieved.

在设计制作中采用了单色性和方向性好的激光作为光源，选取了高速响应和有高速处理能力的一系列器件、芯片，因此时间测量的精度达到了±125 ps，比以往的测试方法提高了1个数量级以上，速度测量精度达到扫描速度的0.1%。

A brand new open-center pneumatic cylinder was developed by JATO Precision for the high speed and high accuracy CNC lathes which use spring collets to clamp work-parts.

JATO Precision针对高转速，高精度，使用弹性筒夹夹持工作物的小型数控车床，开发了一款全新的高速中空气压回转缸JAL636-PL。

ABSTRACT Linear Motion Guide is a new kind of rolling functional unit with the advantages of simple structure, small difference between static friction force and kinetic friction force, high setting accuracy andgood stability of high precision, etc..

滚动直线导轨副是新兴的滚动功能部件，具有结构简单、动静摩擦系数小、定位精度高、精度保持性好等优点。

Conclusion］ The method has higher sensitivity,accuracy and precision,could be applied to determine the contents of carboxylic ester,lactone and their complexes.

结论］分光光度法具有较高的灵敏度、准确度和精密度，适用于各种酯或内酯及混合酯总量的测定。

Systemic studies environment temperature how to influence construction control, finds out linear regularity and function formula of the arch rib, selects optimal closure time, then fully meets requirements of closure precision and linear. By testing a lot of data on temperature and strain and adopting least squares collocation, this dissertation deduces the strain calculate formula that is amended by joining temperature factor, then improves accuracy of stresses testing data.

系统地研究外界温度变化对施工监控的影响，找出了拱肋变化的线性规律和函数式，选择出最佳合龙时机，保证了拱肋的合龙精度和线形要求；测试了大量温度与应力对应关系的实验数据，采用最小二乘拟合推估法，推导出温度修正后的应变计算公式，从而提高了应力测试数据的准确性。

National Institute of Metrology,Beijing 100013,China）Abstract:The linear or non-linear functional formula was used to correct data reasonably to increase accuracy and precision.

摘 要：通过建立漂移与时间的线性或非线性函数关系，可对测量数据进行合理校正，提高分析测试的准确度和精密度。

The quality of stator curve precision grinding is influenced by the movement accuracy of workshop and linear velocity of grinding.

定子曲线的磨削质量主要受工作台的运动精度和磨削点线速度的影响。

The results showed that the linearity,precision and accuracy of the three methods were all good.

结果表明，这三种方法的线性、精密度和准确度均较好。

These are places without aristocratic baggage; egalitarian places open to talent, self-improving, engaged in learning and innovation through networks that were at once competitive and cooperative.

这些地方没有贵族遗风作祟，而且对于那些有天分的人是开放的平等之地，这些人善于通过那些曾经很具有竞争力与合作精神的关系网进行自我提高以及学习创新。

Christine: You don't want to see me?

你不想见我？