sample standard deviation

用法例句

Development of reference materials for dibromochloromethane and bromodichloromethane;

二溴一氯甲烷和一溴二氯甲烷标准样品的研制

Development of a series of bismuth-brass reference materials for spectrum analysis;

系列铋黄铜光谱分析用标准样品的研制

Study on characterisation of stainless steel reference materials containing molybdenum,copper,niobium and nitrogen for chemical and spectral analysis

含钼、铜、铌、氮不锈钢化学和光谱分析系列标准样品的定值研究

Correctly using standard samples to assess measuring and analysing method;

正确使用标准样品评定测量分析方法

Application of metallurgical standard samples in the analysis and testing field;

冶金标准样品在分析测试领域中的应用

Research on water quality——color certified reference material;

水质色度环境标准样品的研究

Research on water quality——thallium (Tl) certified reference material;

水质铊环境标准样品的研制

Standard samples preparation of long-lived nuclide ~(182)Hf for AMS;

用于加速器质谱测量的长寿命核素~(182)Hf标准样品的制备

To standardize the method of wheat gliadin A-PAGE and find the native wheat varieties(lines) which can be used as the standard samples of electropherogram.

为了进一步对小麦醇溶蛋白A-PAGE电泳的鉴定方法进行标准化,比较了凝胶浓度、缓冲体系及其pH值对电泳分辨率的影响,并初步筛选出了适合作为醇溶蛋白电泳标准样品的国内小麦品种。

The Platinum Guild International Representative Office(Shanghai) and the National Standardization Technical Committee of Jewellery developed the standard samples of platinum-ruthenium alloys in order to be used for non-damaged determination.

由此确定此套标样可以作为无损检测建立工作曲线的标准样品。

Preparation of reference materials of bottle-grade PET chip;

瓶级聚酯切片标准样品的研制

Study on certification methods of polyester staple fiber reference material;

涤纶短纤维标准样品的定值方案

Study of reference material for NMR core analysis;

核磁共振岩心实验分析的标准样品研究

Implementing the Accreditation of the Competence of RM Producers to Improve the Quality of RM;

推进标准样品生产者能力认定提高标准样品的质量

Atmospheric air-Test dust standard sample-Fly ash

GB/T13269-1991大气试验粉尘标准样品煤飞尘

authenticated standard drug of abuse, sample of

经鉴定的滥用药物标准样品

Atmospheric air-Test dust standard sample-Loess dust

GB/T13268-1991大气试验粉尘标准样品黄土尘

Effect of standard sample on the laboratory quality control

标准样品在实验室质量控制中的作用

Accurate Determination of Potassium and Sodium in Potash Feldspar and Soda Feldspar Reference Samples

钾长石和钠长石标准样品中钾和钠的准确测定

General specification of electron probe microanalysis standard specimen

GB/T4930-1993电子探针分析标准样品通用技术条件

Atmospheric air-Test dust standard sample-Simulated atmospheric dust

GB/T13270-1991大气试验粉尘标准样品模拟大气尘

The Development of the National Standards Sample on the Cast Alloy Iron Spectral Analysis;

合金铸铁光谱分析用国家标准样品的研制

Uncertainty Evaluation for the Solution Certified Refenrence Material of 1,1-Dichloroethane in Methanol

甲醇中1,1-二氯乙烷溶液标准样品不确定度评定

Preparation and Structural Identification of Standard dihydromyricetin from Ampelopsis grossedentata

二氢杨梅素分析用标准样品制备及结构分析

Development of Certified Reference Material of Organophosphorous Pesticides

三氯甲烷中有机磷农药混合标准样品的研制

Certification Report of Reference Materials of Pinus massoniana Lamb. Rosin for Gas Chromatography Analysis

气相色谱用马尾松松香标准样品的定值

Determination and Evaluation of Uncertainty on Environmental Gas Reference Materials

环境气体标准样品量值的计算及不确定度分析

Situation and development of foreign reference materials for metallurgy and materials

国外冶金和材料标准样品的现状与发展

Discussion on the use of process control diagram to measure standard sample in detection

检测中使用过程控制图对标准样品测量的探讨

standard error of sampling

取样标准误 取样标准误

Each reference sample is well labeled and signed with authorized or approved signature.

每件参考样品都贴上样品标签或由核准人/可人签名的于样品上.