P is the only stable isotope of phosphorus.
是磷元素唯一稳定的同位素。
What is the lightest element on Earth, with no stable isotope?
地球上没有稳定同位素的最轻的物质是什么？
Deuterium is a heavier and stable isotope of ordinary hydrogen.
氘是普氢较重的、稳定同位素。
Even Francium's most stable isotope, Francium-223 only has a half-life of 22 minutes.
钫的最稳定的同位素，钫- 223也只有22分钟的半衰期。
However, the quantitative interpretation for stable isotope in speleothem needs further research.
洞穴石笋稳定同位素的定量解译尚需进一步研究。
To determine the content of Chloramphenicol(CAP) in honey using stable isotope dilution technique.
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.
目的建立用双波长分光光度法测定甲硝唑氯霉素酊中甲硝唑的含量。
Remarkable progress in stable isotope geochemistry solved many difficult geological problems effectively.
稳定同位素地球化学的迅猛发展，有效地解决了许多地质难题。
The origin of dawsonite is emphatically contrasted and analyzed by stable isotope composition of dawsonite.
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 stable isotope composition of Ancient marine carbonate rock approximate reflect the stable isotope composition.
古代海相碳酸盐岩稳定同位素组成能近似地反映古海洋稳定同位素的组成。
The quantitative research of climatic factors by Oxygen stable isotope is an important aspect to probe in this paper.
同位素的古气候定量研究是本次重点探索的问题。
The stable isotope composition indicates that their rock-forming fluid is the seawater, meteoric water or primary water.
稳定同位素特征表明其成岩流体为海水、大气成因水或原生水。
As an applied technology in modern ecology research, stable isotope technique has been prosperously applied to the ecological fields.
稳定性同位素技术是现代生态学研究中的一门应用技术，它几乎在生态学研究的各个领域都有着广泛的应用。
The ability to quantify differences in protein expression and post-translational modifications using stable isotope labeling has been achieved.
在此基础上，实现了对表达的蛋白质差异和翻译后修饰的蛋白质差异进行精确定量分析。
The longterm preserved specimens and fossil insects, when used for stable isotope analysis, can expand the temporal scale of these studies greatly.
对长期保存标本与昆虫化石的同位素分析则扩展了研究的时间范围。
The stable isotope of hydrogen, oxygen and carbon are reinterpreted. The relationship between isotope constituent and paleoenvironment is understood.
对凹凸棒石粘土矿床矿物碳、氢、氧稳定同位素组成提出新的解释，认识同位素组成变化与古环境的关系。
Objective: The metabolic characteristics of resistant starch and its regulative effect on glucose response were studied by native stable isotope technique.
目的：利用天然稳定同位素技术，探讨抗性淀粉吸收代谢的特点及对血糖调节的影响。
As new stable isotope systems, the premise and key of using them to constrain important issues is to understand its fractionation mechanism and process adequately.
作为一个新的稳定同位素体系，正确运用这一体系对重大问题进行制约的前提和关键是对其质量分馏机理与过程有足够的认识。
The highest known magic number for neutrons alone is 126. Lead, with 82 protons and 126 neutrons, is thus "doubly magic" and the heaviest stable isotope in the periodic table.
目前已知的最大中子数是126,82个质子和126个中子组成了元素周期表中最重最稳定的同位素。
The characteristics of stable isotope indicatedthat the ore-forming material was leached from the wall rocks ; and the ore-forming fluid wasmainly supplied by meteoric water.
稳定同位素特征揭示了矿质来说从围岩中淋取；成矿溶液主要来源于大气降水。
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。
The present study made a detailed carbon and oxygen stable isotope analysis on the lacustrine carbonates from the Lower Cretaceous Yixian Formation, Yixian, western Liaoning, NE China.
通过辽西义县盆地上白垩统义县组湖相碳酸盐岩碳氧稳定同位素组成，分析了赋存热河生物群的义县盆地湖湘沉积环境。
The combination of enriched stable isotope tracer studies and activation analysis techniques has become an ideal and reliable technique, especially in the fields of biology and medicine.
浓集的稳定同位素示踪研究和活化分析技术相结合已成为一种理想可靠的技术，在生物医学中更显示出它的特色。
Although the easier ionization of radon leads one to expect the most extensive chemistry for that element, the high instability of even the most stable isotope has severely limited studies of it.
氡容易离子化，这让人期望，该元素有最广泛的化学反应，但是，这个元素最稳定的同位素也极不稳定，这使氡的研究受到了严重的约束。
The dietary and movement history of individual animals can be studied using stable isotope records in animal tissues, providing insight into long-term ecological dynamics and a species niche.
一项研究报告说，科学家可以通过分析象尾毛发的同位素成分从而读出一头象的多年饮食记录。
And the vagaries of quantum physics mean that "too many" and "too few" sometimes overlap, and there is thus no stable isotope (or variant, with fewer or more neutrons) of a particular element.
难以捉摸的量子力学表明，中子“太多”和“太少”有时会重叠出现，因而一些特定的元素没有稳定的同位素(或称变体，核内中子数不同)。
The metabolic kinetics of branched chain amino acids (BCAA) and aromatic amino acids (AAA) in normal subjects and patients with severe viral hepatitis as studied with 4 stable isotope labeled tracers.
作者用4种稳定性核素标记的支链氨基酸和芳香氨基酸对正常人与重型病毒性肝炎（重型肝炎）患者进行示踪动力学的研究。
An isotope of carbon known as carbon-14 would also be stable, as would a form of oxygen, so the organic reactions necessary for life would be possible.
碳的一个同位素碳14也是稳定的，氧的情形也是这样，因此生命必须的有机反应成为可能。
The stable hydrogen and oxygen isotope is an environmental isotope, which extensively exists in various kinds water.
稳定性氢氧同位素是广泛存在于水中的环境同位素。
Stable carbon isotope analysis is a rapid and reliable technique developed in recent years and may reveal many processes of carbon dynamics in plants.
植物稳定碳同位素技术是近年兴起的一项快速、可靠的技术。
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