standard uncertainty

This article introduced how to analyze uncertainty source in the work of class M1 weight verification/ calibration electric platform scale, calculates various heft method of standard uncertainty, synthesis standard uncertainty and expansion uncertainty.

本文介绍用M1级砝码检定/校准电子台秤的工作中，怎样分析不确定度来源，计算各分量的标准不确定度、合成标准不确定度以及扩展不确定度的方法。

The uncertainty of measurement appeared in the determination was mainly caused by that in the analysis precedure with GC, and that of the cypermethrin standard work-solution.

该测量过程所产生的测量不确定度主要来源于气相色谱仪引入的测量不确定度，其次是氯氰菊酯标准工作溶液引入的测量不确定度。

The combined standard uncertainty of HPLC is 0.454 % , and DSC is 0.025 %.

差示扫描量热法检测N- 苯基-β-萘胺纯度合成标准不确定度为0.025%.

Analysis of Standard Uncertainty for Measurement of Windage and Friction Loss of Three-Phase Induction Motor

异步电动机风摩耗测量的标准不确定度分析

Optical clock is the most promising atomic clock and its uncertainty will reach to 10? 1 8 theoretically, which could be the time and frequency standard of the next generation.

光钟是目前公认的最具有发展潜力的原子钟，理论上预期光钟的频率不确定度可达10-18，有望成为国际新一代时间频率基准。

Some international organizations, such as CIPM, BIPM and ISO, have advocated a united method to estimate accuracy of measurement, and managed to establish a technical standard named" Guide to the Expression of Uncertainty in Measurement"( GUM).

CIPM、BIPM、ISO等国际组织提出了统一的测量准确度的评定方法，制定了测量不确定度表示指南等技术规范。

The combined relative standard uncertainty is 0 . 333 %.

合成相对标准不确定度为0.333%.

Now we are evaluating the uncertainties with the target to establish the new generation time and frequency primary standard, with uncertainty in the order of 10-15, of this nation.

目前我们正在进行不确定度评估，可望不确定度进入10-15量级，建立我国新一代时间频率基准装置。

This paper expounds evaluation method and course of uncertainty in DJ 2-theodolite level standard deviation ofcircle measurement.

阐述了DJ2经纬仪一测回水平标准偏差测量结果不确定度的评定方法和过程.

There was a bit more uncertainty about fourth-generation ( 4G) mobile connectivity. Here, Apple seems to have dealt with several bugbears of Long Term Evolution ( LTE), an increasingly ubiquitous 4G standard capable of faster download rates and more consistent reception.

有一点不确定就是新iPad在4G移动数据的连通能力上，苹果似乎在LTE（Long Term Evolution长期演进）上遇到了一点小麻烦，LTE作为4G标准已经初具规模并且在上传和下载速度上都有着良好的表现。