isotopic

1. It is important to avoid the use of uranium compounds of unspecified isotopic composition.
   要避免使用那种非专用的同位素成分的铀化合物。
2. Inorganic Mass 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。
3. National Geographic reports that isotopic dating and DNA experiments revealed the unusual pairing of body parts.
   据《国家地理杂志》报道，同位素定年和DNA检测结果显示，这两具木乃伊的身体部位不寻常。
4. It is showed that compensated neutron logging can be realized by using neutron generator instead of isotopic neutron source.
   结果表明，可以用中子发生器代替同位素中子源实现补偿中子测井。
5. New Research Fields and New Development Tendency on Noble Gas Isotopic Geochemistry
   稀有气体同位素地球化学研究的新领域、新动向
6. 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
7. New Advances in Isotopic Geologic Studies of Gold Deposits in China
   我国金矿床同位素地质研究的新进展
8. Collector system for isotopic analysis
   同位素分析收集系统
9. Comprehensive Study on Extraction of Rhenium with Acetone in Re-Os Isotopic Dating
   铼-锇同位素定年法中丙酮萃取铼的系统研究
10. Application of isotopic tracer in life science
    同位素示踪在生命科学中的应用
11. Based on isotopic geochemistry, relationship between mineralization of Shanmen silver deposit and regional magmatic activity is discussed.
    文章运用同位素地球化学方法对四平山门银矿成矿作用与区域岩浆活动的关系进行了探讨。
12. Application of in-situ isotopic analysis to granite genesis
    原位微区同位素分析在花岗岩成因研究中的应用
13. You are what you drink: local water leaves an isotopic mark in your hair.
    人如其饮：当地水在你的毛发中留下了同位素的印迹。
14. The organic carbon isotopic composition of sediments has been widely used to reconstruct paleoenvironment.
    沉积物中的有机质稳定碳同位素已经广泛应用于重建古环境。
15. In recent years we have conducted supplementary researches on the isotopic characteristics of some of the super_large ore deposits in China.
    近年来，我们对国内若干特大型矿床的同位素特征进行了补充研究。
16. 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。
17. An isotopic study of granite and uranium deposits in ore field No.322
    322矿田花岗岩与铀矿床的同位素研究
18. Determination of Strontium Isotopic Composition in Celestite& Comparison of Sample Decomposition Using Acid Digestion and Alkali Fusion
    天青石中锶同位素组成测定&酸溶和碱熔样品分解方法的对比
19. An isotopic analysis of the grains has made that fear come true.
    一项对这些颗粒的同位素分析让这种担心成真了。
20. The proposed method is more accurate than the qualitative investigation such as isotopic tracer.
    该方法较同位素及综合示踪法定性分析更为精确。
21. Osmium isotopes in the natural isotopic mixture are separation by gas centrifuge technology.
    对天然锇同位素进行了离心分离。
22. 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。
23. Heavy water is also used in research as an isotopic tracer for chemical reactions and biochemical pathways.
    在实验研究中，可用作化学过程和生物化学过程的同位素示踪剂。
24. A summary of elemental and isotopic compositions of the Mesozoic gabbros and Cenozoic basalts from the Taihang Mountains shows a remarkable difference in their mantle sources.
    本文总结了太行山地区中生代辉长岩和新生代玄武岩的元素和同位素组成，其组成显示它们的地幔源区存在着明显的差别。
25. 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。
26. The effects of element sulfur on carbon isotopic fractionation of methane have been systematically studied by the simulation experiments of thermal transformated methane from organic matter.
    通过热模拟实验，系统研究了单质硫在有机质生成甲烷过程中对其碳同位素分馏的影响。
27. Investigation of adsorption, distribution and migration of lead between environment and plant by stable lead isotopic tracer
    铅在植物-环境体系中的吸收、分布和迁移规律的稳定同位素示踪法研究
28. Oxygen and Carbon Isotopic Compositions of Some Chinese Siderite Ore Deposits
    我国某些菱铁矿矿床的氧和碳同位素组成
29. These achievements can be regarded as great contributions to the unification of datum mark and scale of isotopic measurements.
    这些成果对统一同位素测量的基准和尺度，保证同位素测试数据在国际范围内的可比性起到了巨大的推动作用。
30. The isotopic composition of lead, sulphur and carbon demonstrate a complex source of ore forming material.
    用硫、碳和铅同位素组成说明成矿物质的复杂来源。

adj

1. of or relating to or having the relation of an isotope