Isotopic analysis of shells allowed geologists to measure another glacial effect.
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。
This system can determine 13 isotopic peaks by single beam method.
该系统使用单束法能测定13个同位素峰。
The isotopic signatures of most ancient limestones indicated the same process .
大多数古代石灰岩的同位素特征说明了同样的过程。
The neck should be examined yearly. Isotopic scanning is not repeated routinely.
每年应作颈部检查，按常规不需要进行同位素重复扫描。
You've got some radioactive isotopic that can spontaneously decay into some other nucleus.
我们有一些放射性同位素，这些同位素会自发变成其他的原子核。
Evidence from isotopic dating suggests that the greenstone belts vary considerably in age.
来自同位素年龄鉴定的证据指出，绿岩带在年龄上彼此变化相当大。
On-Line measurement of solid content in aluminium hydroxide slurry by isotopic densitometer.
应用同位素密度计在线测量氢氧化铝料浆的固体含量。
By analysing the isotopic composition of hydrocarbon molecules from plant waxes of the period.
通过分析该时期植物腊的碳氢分子同位素组成。
The isotopic compositions of reference materials are basic parameters for isotopic measurement.
同位素参考物质的同位素组成是同位素测量的基本参数。
Many important achievements have been obtained in application of isotopic hydrology technology.
至今同位素水文技术已获得许多项重要成果。
The isotopic dating and fossil geochronometry are the basic methods of ophiolite geochronometry.
同位素测年及化石年代学法是蛇绿岩年代学研究的基本方法。
Isotopic trace injection profile logging theory is based on isotopic tracer measurement technology.
同位素示踪注水剖面测井的理论基础是同位素示踪测量技术。
A method by cumulative intensity of ion current to analyse isotopic ratio is proposed in present paper.
本文介绍了离子流强度累计测定同位素比的方法。
Stable isotopic method can be used effectively in the diagenetic research of deep water carbonate rocks.
稳定同位素方法可以有效地应用于深水碳酸盐岩的成岩作用研究。
We have studied the influence of laser linewidth on ionized efficiency and selectivity of isotopic atoms.
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。
This paper, combined with previous data, briefly summarizes the results of isotopic studies of these deposits.
本文结合前人的资料，对这些矿床的同位素研究成果作一概括性总结。
The trick they used to do this was to look at the isotopic composition of the oxygen in the wood of local trees.
他们所使用的办法是观测当地树木的木材中的氧同位素组成（isotopic composition）。
Spectrometry is preferably used each time extremely low concentrations and isotopic abundance are to be determined.
每当测定非常低的浓度和同位素丰度时总是首先使用无机质谱法。
Being a noble gas, it resists chemical bonding with other elements and is thus easy to purify for isotopic analysis.
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。
The variations in isotopic ratios take place on the right time scale, and they mirror those seen in modern corals, he notes.
他说，同位素比例变化所发生的时间范围恰到好处，这与在现代珊瑚中的发现保持了一致。
NP-type chelate resin beads is used as a carrier of samples in the isotopic measurements of uranium by mass spectrometry.
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。
Noble gas isotopic geochemistry is a useful tool for studying on mantle degassing and evolution of the Earth's atmosphere.
惰性气体同位素地球化学是研究地幔脱气作用和地球大气形成与演化的有效工具。
Isotopic studies from geothermal fields indicate that about 95% of the thermal fluid from steam Wells is meteoric in origin.
地热田油同位素研究证明：蒸气井热流体的95左右是大气降水成因的。
By comparing with relevant results, it can be found that the kinetic isotopic effects of the reaction are relatively obvious.
通过对相应结果的对比，可以发现这个反应具有比较明显的同位素效应。
The article summed isotopic tracing characteristics, and reviewed its applied progress and tendency in above-mentioned fields.
文章综述了同位素示踪技术在上述方面的应用现状和发展趋势。
The information of stable isotopic aging is the important basis for the deep structures, mineralization and chronostratigraphy.
稳定同位素测年信息，是深部构造、成矿作用和地层年代学的重要依据。
The magic Numbers and isotopic effect as well as stable configurations in relation to the charge state of the clusters are discussed.
根据南京大学最近在离子簇结构和性质方面的研究进展，重点讨论离子簇的幻数和同位素效应及其与稳定结构和电荷状态的联系。
The magic Numbers and isotopic effect as well as stable configurations in relation to the charge state of the clusters are discussed.
根据南京大学最近在离子簇结构和性质方面的研究进展，重点讨论离子簇的幻数和同位素效应及其与稳定结构和电荷状态的联系。
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