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- hydrogen isotope geochemistry 氢同位素地球化学
- Title： Hydrogen and oxygen isotope geochemistry of high to ultrahigh pressure metamorphic rocks from Southeast Dabie. 关键词：大别山;超高压;变质岩;氢同位素;氧同位素;水-岩相互作用
- 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?
- Sr-Nd-Pb isotope geochemistry and tectonic setting of Devonian polymetallic metallogenic belt on the Southern margin of Altaid,Xingjing. 新疆阿尔泰南缘泥盆纪多金属成矿带Sr-Nd-Pb同位素地球化学与构造背景探讨
- There are 37 lectures, major headings are geochronology, radiogenic isotope geochemistry and stable isotope geochemistry. 这里有37讲，主要是地质年代学、放射性同位素地球化学和稳定同位素地球化学。
- Only a lighter atomic nuclei fusion can occur, such as the hydrogen isotope deuterium and tritium, and so on. 只有较轻的原子核才能发生核聚变，比如氢的同位素氘、氚等。
- Abstract The isotope fractionation effect is primary factor affecting accuracy of hydrogen isotope analysis. 摘要 同位素分馏效应是影响氢同位素准确分析的主要因素。
- The isotope fractionation effect is primary factor affecting accuracy of hydrogen isotope analysis. 同位素分馏效应是影响氢同位素准确分析的主要因素。
- Thermal cycling absorption process(TCAP),a semi-continuous hydrogen isotope separation process,is of many unique advantages. 对热循环吸附法(TCAP)全回流模式和生产模式下的氕-氘分离实验进行了研究。
- Nitrogen isotope geochemistry in minerals and rocks has not been fully studied,primarily because of very lower(<1000 ppm) concentration of nitrogen in the crustal rocks and the difficulty to extract nitrogen from silicate minerals and rocks. 氮同位素地球化学在固体地球科学研究很少被关注;主要是由于在地壳岩石中氮丰度很低(<1000 ppm)和氮难于从硅酸盐中提取出来。
- Some of preblems will be accounted by means of stained thin section microscopic identification, catholuminescence microscopic observation, trace elent analysis, carbon and oxgen isotope geochemistry, and fluid inclusion analysis. 认为利用染色薄片鉴定、阴极发光显微镜观察、微量元素分析、碳氧稳定同位素测定及包裹体测温等综合手段进一步研究，最终将解决这些问题。
- The authors anticipate that future advance in biomarker study, isotope geochemistry, and molecular biology will facilitate and improve our knowledge basis in the biogeochemistry of extremophiles. 作者预测未来将会在生物标志化合物研究、同位素地球化学分析和分子生物学综合研究的基础上协同推进极端微生物地球化学学科的发展。
- Based on density-functional theory (DFT) and density-functional perturbation theory (DFPT) we have discussed systematically the hydrogen isotope effects on the thermodynamic properties of TiX2 (X=H, D, and T) system. 应用基于密度泛函理论(DFT)和密度泛函微扰理论(DFPT)的 PWSCF和PHONONS第一原理计算程序系统研究了TiX2(X=H,D,T)系统热力学特性的同位素效应。
- Hydrogen isotope separation with cryogenic distillation device is a main way to obtain high pure tritium, which is an important application in the atomic energy field with cryogenic technique. 氢及其同位素的精馏分离是制取高纯氚的一个主要方法，是低温技术在原子能领域的重要应用。
- Isotopic geochemistry of granitic rocks from Tuomuer Peak region, Tianshan, China. 天山托木尔峰花岗质岩石的同位素地球化学特征。
- Therefore, development of isotopic analytical techniques is always a major task of study on isotopic geochemistry. 因此发展同位素测试技术始终是同位素地球化学研究的一个主要方面。
- Laboratory for Radiogenic Isotope Geochemistry 固体同位素地球化学实验室
- Laboratory for Stable Isotope Geochemistry 稳定同位素实验室
- In certain fusion processes, among nuclei of the hydrogen isotopes, neutrons of high energy are liberated. 在氢同位素原子核中的某些熔合过程中，会释放出高能中子。
- Water contains hydrogen and oxygen. 水含有氢和氧。
