对贝壳的同位素分析使得地质学家可以测量另一种冰川效应。
Isotopic analysis of shells allowed geologists to measure another glacial effect.
通过分析其中的同位素(同一种元素拥有不同的质量)比例，他可以了解这些菊石所生活的环境特征，如温度和盐度。
By analyzing ratios of isotopes — variations of the same element with a different mass - he can learn things about the environment they lived in, such as temperature and salinity.
碳的同位素分析与其他的研究结果告诉我们，大气中的二氧化碳大部分来源于工业生产的排放。
Analysis of carbon isotopes, among other things, shows that the carbon dioxide from industry accounts for most of the build-up in the atmosphere.
再加上检测同位素氧，分析表明至少有一具吃过小米的无头尸的主人，来自东欧，或者来自高海拔地区。
Combined with oxygen isotope testing, the analysis suggested that at least one headless millet-eater came from Eastern Europe or somewhere with access to water from high altitudes.
分析其头发中的同位素，显示了她在被害前曾在美国西部的山区生活过几年，这有助于警探集中调查。
Isotope analysis of her hair revealed that she spent the years before she died in America's western mountains, which helps detectives concentrate their search.
科学家们分析了340，000年的横跨东南极洲的三个冰芯地址的氢氧同位素数据，并与同位素启用整体循环模式系统得出的结果。
The authors analysed 340,000 years of oxygen and hydrogen isotope data from three ice core sites across East Antarctica, alongside isotope-enabled general circulation model results.
一项由美国研究者们发表在科学杂志上的研究，就阿波罗号从月球返回地球后，带来月球上许多氯的同位素进行了分析。
A study by US researchers, published in Science, analysed chlorine isotopes of the much-studied samples, brought to Earth by the Apollo space missions.
由于氙是惰性的，不易与其他元素产生化学键，因此很容易纯化以进行同位素分析。
Being a noble gas, it resists chemical bonding with other elements and is thus easy to purify for isotopic analysis.
建立稳定同位素稀释技术测定蜂蜜中氯霉素（CAP）分析方法。
To determine the content of Chloramphenicol(CAP) in honey using stable isotope dilution technique.
通过分析该时期植物腊的碳氢分子同位素组成。
By analysing the isotopic composition of hydrocarbon molecules from plant waxes of the period.
根据片钠铝石稳定同位素组成，对比分析片钠铝石的碳来源。
The origin of dawsonite is emphatically contrasted and analyzed by stable isotope composition of dawsonite.
随着现代分析测试技术的提高，碳同位素在油气地球化学中的应用也越来越广泛。
With the development in modern testing and analyzing techniques, carbon isotopes have been used widely in oil and gas geochemistry.
并以镥原子共振电离为例，探讨了该方案用于激光共振电离质谱(LRIMS)同位素分析的可行性。
As a versatile example, the feasibility of this scheme applied to lutetium isotopic analysis by Laser Resonance ionization Spectrometry (LRIMS) was discussed.
同位素稀释分析是研究氮素在土壤植物体系中转化和迁移特征的有效方法。
Isotope dilution analysis is a valid approach for studying nitrogen transformation characteristics in soil-plant systems.
此仪器可用于气体分析以及轻元素的同位素丰度测定。
This instrument can be used for gas analysis and determine of isotopic abundance of light elements.
钢瓶氢气可作为氢同位素实验分析的工作标准气来衡量仪器的误差及稳定性。
The accuracy of hydrogen isotope analysis results needs a kind of working standard gas as a prerequisite.
利用地下水氢氧同位素（2H、3H和18O）和碳同位素（14C）方法，分析银川平原承压水的补给更新能力。
With the application of hydrogen and oxygen isotopes(2H, 3H and 18O) and carbon isotope(14C), the recharge and renewability of confined water in Yinchuan Plain have been analyzed.
砂金中的微量铅同位素分析具有特殊的意义。
The isotope analysis of minim lead in the gold dust has special meaning.
报道了浙江7个地开石粘土矿床的氢和氧同位素分析数据。
The data of hydrogen and oxygen isotopic analyses are reported in 7 dickite clay deposits of Zhejiang Provine.
第三种重要方法是同位素示踪分析。
海相碳酸盐岩中的碳、氧同位素组成及其演化特征分析是古气候、古海洋环境研究的一种常用手段。
The carbon and oxygen isotope composition and its evolution of Marine carbonate rock is commonly means to the study of the ancient climate and ancient Marine environment.
本论文对来自四川龙门山泥盆纪的腕足化石进行碳、氧同位素分析。
This paper analysed the carbon and oxygen isotope composition of brachiopods fossils from the Devonian Period in Sichuan Province.
分析了激光线宽对同位素原子激发电离效率和选择性因子的影响。
We have studied the influence of laser linewidth on ionized efficiency and selectivity of isotopic atoms.
文章根据同位素分析结果，提出了浅层地下水年龄都较年轻的观点。
On the basis of isotope analysis it is pointed out that the ages of the shallow groundwater are quite young in general.
本文通过对杂岩体的成因、成岩时代、岩石类型以及岩体的含金性和部分同位素的特征分析，探讨了岩体与矿床的成岩关系。
Based on researching of the age, rock types genesis, gold content and the stable isotope composition of the complex, the relation between the deposit and the complex is discussed.
研究了NP型螯合树脂珠作为质谱样品载体，对铀同位素进行热电离质谱分析的方法。
NP-type chelate resin beads is used as a carrier of samples in the isotopic measurements of uranium by mass spectrometry.
简介了稳定同位素分析技术的现状；
The current situation of analytic techniques using stable isotopes is briefly described.
概述了钙同位素分馏机理、分析测定以及在环境地球化学研究中的应用。
Fractionation mechanism, analytical method and its applications in environmental geochemistry of calcium isotopes are summarized in this paper.
概述了钙同位素分馏机理、分析测定以及在环境地球化学研究中的应用。
Fractionation mechanism, analytical method and its applications in environmental geochemistry of calcium isotopes are summarized in this paper.
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