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- The meteoric origin of geothermal water in study area is evidenced by its environmental isotope composition. 摘要环境同位素研究结果表明，研究区地热水为大气降水成因。
- Diet composition hada large effect on stable carbon isotope composition of cattle tissues. 饲料对牛组织中碳同位素组成的影响远大于牛品种对它们的影响；
- OXYGEN ISOTOPE COMPOSITION OF ANHYRITE IN EARLY STAGE VEINS, MINRAL PARK PORPHYRY SYSTEM, WALLAPAI MINING DISTRICT, ARIZONA, U. S. A. 美国Wallapai矿区Mineral Park斑岩型矿床早期矿脉中硬石膏的氧同位素组成
- This paper analysed the carbon and oxygen isotope composition of brachiopods fossils from the Devonian Period in Sichuan Province. 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。
- Secondly, the Os concentration and residence time in seawater, and Os isotope composition of seawater were precisely measured. 对海水中锇的浓度、滞留时间 ,以及现代海水的锇同位素组成进行了精确测定 ;
- Based on the study of chemical composition and isotope composition of galena,the paperdiscussed the genetic-type of the deposit. 通过对矿床中方铅矿的化学成分特征对比分析及同位素组成特征的研究，阐述了矿床的成因类型。
- Yi X F, Li L X, Zhang X A, Zhao L, Li M C.Influence of artificial food on stable carbon and nitrogen isotope composition of Plateau Pikas. 易现峰;李来兴;张晓爱;赵亮;李明财.;人工食物对高原鼠兔稳定性碳和氮同位素组成的影响
- Isotope composition shows multi-stage minerlization,multi-source fluid and high thermeral current value of petrological environment. 稳定同位素组成显示成矿具多期性，流体具多源性，成岩环境热流值高；
- Then the stable carbon isotope composition of PAH series such as alkyl naphthalene and alkyl phenanthrene in crude oil samples of Tuha basin were determined on GC-IRMS. 并通过色谱-同位素比值质谱（GC-IRMS）技术对吐哈盆地原油中烷基萘和烷基菲等系列化合物的碳同位素组成进行测定。
- Research on chemical components and isotope composition of carbon and hydrogen of natural gases from the Tarim basin shows that all discovered gases in this basin are thermogenic. 天然气的组分和碳、氢同位素组成特征研究表明塔里木盆地已发现的天然气均为热解气。
- 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. 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。
- Nd isotope composition, however, is relatively stable during the hydrothermal fluid_rock interaction, and hence can serve as a tracer for magmatic origin of ore-forming fluids. 而钕同位素则相对稳定，可作为蚀变侵入体岩浆起源的示踪剂。
- This paper reviewed the effect of environmental factors such as light, temperature, CO2, water, nutrient, salinity, air pollutants on stable carbon isotope composition in plants. 本文综述了光照、温度、水分、二氧化碳、矿质营养、盐分和大气污染物等环境因素对植物稳定碳同位素组成影响方面的研究进展。
- The Anqing copper deposit has a complicated sulfur isotope composition ,which can not be explained by the variations of a single sulfur source or the physico-chemical conditions. 安徽安庆铜矿床的硫同位素组成复杂，不能用单一硫源或物理化学条件的变化来解释。
- How could such a change in isotopic composition have come about? 同位素的组成有这样的变化，究竟是如何发生的？
- Wei Juying and Shangguan Zhiguan.Oxygen isotope composition of magnetite and hematite from Bayan Obo Fe ore deposits in Inner Mongolia.Scientia Geologica Sinica,1983,(3):217-224. [8]魏菊英;上官志冠.;内蒙白云鄂博铁矿床中磁铁矿和赤铁矿的氧同位素组成
- The stable variation of lead isotope compositions suggests that it belongs to normal lead. 铅同位素组成变化不大,属正常铅。
- WHAT CAN WE LEARN FROM OXYGEN AND HYDROGEN ISOTOPE COMPOSITIONS OF TREE-RING CELLULOSE IN HIGHER PLANTS? 树年轮纤维素稳定同位素比率的生态学意义?
- The disease is still in its primary stage. 这疾病仍然在初发阶段。
- Using GC/C/MS online carbon isotope analytic technic,abundant imforma- tion about single molecular carbon isotope composition can be taken from micro-samples(chromatographical scale). GC/C/MS 在线碳同位素分析技术,能够从微量样品(色谱量级)中获得丰富的单分子碳同位素组成信息。
