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1)  mass number
质量数
2)  Comprehensive index embodied quality
质量质数
3)  data quality
数据质量
1.
Analysis on data quality and input efficiency of land-use GIS in remote areas;
土地利用GIS系统数据质量、输入效率的初步分析
2.
Analysis on information data quality management system mode;
基于信息化的数据质量管理系统模式探析
3.
Discussion on Improving Data Quality in Statistics;
对提高统计数据质量的几点思考
4)  mass fraction
质量分数
1.
The influences of PU mass fraction and the time of repose on the moisture vapor permeability of PU thin membranes were studied.
主要采用湿法成膜方式研制聚氨酯微孔膜,并对其透湿情况进行测试,研究了聚氨酯质量分数和静置时间长短对薄膜透湿量的影响。
2.
In order to reasonably and efficiently develop and utilize almond gels,the law for the changes of texture properties in different mass fractions of almond gels was studied by using TA-XT2i texture analyzer.
为了合理高效开发利用扁桃胶,利用TA-XT 2 i质构仪研究了不同质量分数的扁桃凝胶质构特性的变化规律。
3.
Proceeding from the concepts and definitions of the activities of components in metallurgical melts and their standard states, the discrepancies about applying the mass fraction and mass percent concentration to metallurgy were analyzed and discussed.
从冶金熔体中组元的活度及其标准态的概念和定义出发,分析和讨论了在冶金领域应用质量分数和质量百分浓度的差异。
5)  Quality index
质量指数
1.
By mathematical model and data analysis,using comprehensive quality management and quality index assessment,the paper calculated the quality indexes of 27 tertiary general hospitals in Guangxi,and made comparative assessment and analysis among hospitals.
运用综合质量管理与质量指数评价方法,获得2004年度广西27家三级综合性医疗机构的质量数据,进行院际间的评价与分析。
2.
As a part,the construction quality index(CQI) can be used for evaluating the Chinese construction quality status;and some technical methods such as spot checks and analytic hierarchy process can be used for getting macro and micro const.
该体系以建设工程质量指数(CQI)作为我国建设工程总体水平的综合衡量指标,并运用抽样调查、项目质量评价的层次结构模型等一系列技术方法,逐步得出建设工程质量的微观和宏观评价结果。
3.
Based on inspection data of imports and exports,this paper attempts to set up a quality index-the value of quality characteristic.
以出入境货物的质量检验数据为基础,构建了出入境货物总体的质量特性值———质量指数,并提出了对其进行质量宏观分析与监测的方法。
6)  concentration [英][,kɔnsn'treɪʃn]  [美]['kɑnsṇ'treʃən]
质量分数
1.
Research on fluorine concentration in coals from Guizhou province by pyrohydrolytic-ion chromatograpy;
用高温水解-离子色谱法研究贵州煤中氟质量分数
2.
Experiment and numerical simulation on chloride concentration cumulating in concrete affected by reinforcement
钢筋影响下混凝土中氯离子质量分数累积研究
3.
Using compressed air foam system and drainage apparatus,the drainage process of compressed air foam with typical protein based class A agent was studied under the concentration range of 0.
利用压缩空气泡沫灭火系统和析液装置,对典型的蛋白型A类泡沫灭火剂在压缩空气泡沫产生方式下的泡沫析液(泡沫溶液的质量分数取0。
补充资料:质量数
质量数
mass number
    原子核内质子数Z和中子数N的总和
    
。它也是同位素的质量最接近的整数
    
,例如氮的同位素14N的质量为14.00307,15N的质量为15.00011,它们最接近的数值为14和15,
    
因此这两种氮的同位素的质量数分别是14和15。按规定,质量数的表示方法为将它写在元素符号的左上角,如14N、15N。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条