1.
A research on the element migration in the course of smoking by the element ratio method
元素比值法用于吸烟过程的元素迁移研究
2.
These elements compare two values, producing a boolean result.
这些元素比较两个值，产生一个布尔代数结果。
3.
Intercomparison of Determination Methods of 6 Trace Elements in Pollen
花粉中6种微量元素测定方法的比对
4.
Principles and Methods of the Analysis of Background Values of Elements in Soils in Beijing Area
北京地区土壤元素背景值处理原则和方法
5.
Comparative Study on Methods for Measuring Trace Element in Chongqing Soil;
重庆测土施肥中微量元素测定方法比较研究
6.
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
7.
atomic weight(also relative atomic mass) ratio between the mass of one atom of an element and one-twelfth of the weight of an atom of carbo
原子量（某元素的一个原子的质量与十二分之一的碳 原子量的比值）.
8.
The Response to Climate and Environment Change of Trace Element Ratio from Speleothem in Central Western Guizhou, China;
贵州中西部地区洞穴沉积物元素比值对气候和环境变化的响应
9.
The Origin Differentiation of Seized Heroin Us-ing GC-C-IRMS II--Study on the ~(13)C Isotope RatioMass Spectrometry of Seized Heroin;
同位素比值质谱法鉴别缴获的海洛因来源——2.海洛因的碳同位素比值质谱法研究
10.
System Element Value Coefficient Position Comparative Method" and its application;
“系统要素价值系数定位比较分析法”及其应用
11.
"Ratio Method" to Measure Depth Distribution of ~(152)Eu by In-situ HPGe γ Spectrometry
就地HPGe γ谱仪“比值法”核素深度分布测量
12.
Detection of palm oil adulterated into corn oil by carbon isotope ratio method
碳同位素比值法检测棕榈油掺入玉米油的研究
13.
Determination of ampelopsin in teng cha extract by first derivative ratio fluorescence spectrometry
比值-导数荧光法测定藤茶中的蛇葡萄素
14.
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。
15.
Blank Value Reducing Method on Determinating Metallic Element in Soil by Atomic Absorption Method
原子吸收法测定土壤中金属元素时空白值的降低方法
16.
Pre-Treatment Method Comparison of Electric Cooker Digestion and Microwave Digestion in Determination of Cuprum and Lead in Atmosphere
电热板消解法与微波消解法测定大气颗粒物Cu、Pb元素的对比
17.
Yet the event that had the most adverse affect on the U.S. trade balance -- the ratio of imports to exports -- was the unexpected jump in the foreign exchange value of the dollar.
可是对美国的贸易平衡（进出口之比）影响最大的因素是美元外汇比价的突然升值。
18.
Determination of Trace Elements in Urine of Electroplating Industry Personnel in Longwan District of Wenzhou City with Flame Atomic Absorption Spectrometry
原子吸收光谱法检测电镀从业人员尿微量元素的价值