The measurement method of the isotopic abundance ratios for the nanogram samarium was performed by Finnigan MAT 262-RPQ thermal ionization mass sepctrometer.
本文简介了使用Finnigan MAT 262热电离质谱仪对超微量钐天然同位素丰度比的精密测定。
Two samples of a set of national standard water samples which have natural level ratio of D and H are set as standards and the other two as unknown samples,a linear calibration method with equal H2+ is studied on GAM400 quadrupole mass spectrometer.
利用双标准外标氘氢丰度比差值校准系数的方法对两个标准水样进行了测量,结果与国家标准值偏差为±0。
Measurement of Isotopic Element Rb s Abundance Ratio with Optical Pumping Magnetic Resonance Method;
光泵磁共振法测量同位素铷的丰度比
APPLICATION OF ISOCS TO MEASUREMENT OF ISOTOPIC ABUNDANCE RATIO OF URANIUM
ISOCS在铀同位素丰度比测量中的应用
The isotopic abundance ratio and content are determined with isotopic mass-spectrometry.
文章用同位素质谱法测定了辐照堆元件铀的同位素丰度比和含量。
Comparison of the methods of calculating the abundances of heavy elements in metal-poor stars;
计算贫金属星重元素丰度分布方法的比较
Component proportions of the abundances of three typical heavy elements in metal-poor stars;
贫金属星三种典型重元素丰度的分量比例
Comparison of Eubacteria and Archaea Richness in Anoxic Treatment System for Oilf ield-produced Wastewater
采油废水缺氧处理体系细菌和古细菌丰度对比
Comparation on abundance of rare earth elements in Huainan coals and their combustion products
淮南煤及其燃烧产物中稀土元素丰度的比较
Particle Size Analysis Curve Comparative Stratum by Time Series in Peifeng Mine
用时间序列粒度分析曲线对比培丰勘探区地层
After the comparison between abundance and density,on the top list are Zhoushan,Jiaxing and Huzhou.
密度与丰度相比,位次上升最明显的是舟山、嘉兴、湖州;
Eight equations computed isotopic abundance and two equations computed isotopic abundance ratio have been given.
给出八个计算丰度公式和两个计算同位素比公式。
A Comparative Study of Employment Interviews between Bank of China and Hong Kong and Shanghai Banking Corp.: An Analysis from Intercultural Perspective;
从跨文化的角度对中国银行和汇丰银行招聘面试的对比研究
Contrast study to data from geological sampling and deep-tow system of dense portion in China Pioneer Area
多金属结核加密小区深拖资料与地质取样覆盖率、丰度的对比
high abundance sensitivity mass spectrometer
高丰度灵敏度质谱计
Friction spun yarns are uniform, quite free of impurities, fuller with more body than ring- spun yarns, but they tend to have less strength.
磨擦纺纱生产的纱线条比较均匀,含杂量少,比环锭纺纱线丰满且更有身骨,但强度略低。
the whole family has a big dinner together.
一家人共度丰盛的晚餐。
absolute isotopic abundance measurement
绝对同位素丰度测量
relative isotope abundance determination
相对同位素丰度测量
The fuel is abundant, the process safe and the waste, though radioactive, is far less noxious than the stuff left over from fission.
燃料储量丰富，过程安全，废料尽管有放射性，但同裂变产生的废料相比，有害程度要小得多。
