同位素

Based on the strontium concentration,isotope composition of the dolomites,the dolomitization fluids were accordingly inferred here.

根据白云岩的锶舍量和锶同位素组成，结合相关岩石学和地球化学资料，本文研究了白云石化过程中锶的迁移和相应的同位素变化。

Stable isotope rations, major, trace and radioactive elements in emmental cheeses of different origins. Lebensmittel- Wissenschaft und-Technologie, 2003

碳同位素与氮、氘、氧等其它同位素结合分析，有可能建立一套利用牛尾毛追溯牛生活史的技术方法。

Recognized the regional geological history and the lack of external Sr sink epidote among the hydrothermal mineral assemblages, we refered that the Rb-Sr isoehron isotope date was the hydrothermal ore formation age.

因此本文通过Rb-Sr等时线所确定的250±20Ma同位素年龄具有地质意义，结合对区域地质演化史的基本认识及金矿石热液蚀变组合的研究(易捕获外来锶的绿帘石不发育)，该同位素年龄代表热液成矿年龄。

The crystal structure of pure Pd is of face centered cubic and it is a hydrogen absorbing metal.

钯是一种面心立方结构的吸氢金属，氢原子溶解在晶格中，占据八面体间隙位，形成fcc的子晶格，吸氢时晶格发生等方性膨胀；氢在钯中的扩散路径为O T O跃迁，存在反同位素效应；钯氢化物的氢同位素分离因子较大，并受到温度、氢浓度等因数的影响；钯氢体系的p c等温线表现出良好的坪台性，Pd H和Pd D均存在临界点，尚未确定Pd T有无临界点；单晶钯氢反应动力学与不同的晶面有关；钯氚体系存在氚老化效应

Here we present Pb isotopes of two ferromanganese crusts from Central Pacific, and obtain Pb isotope time series over the Cenozoic period in Central Pacific Ocean.

为此分析了取自中太平洋两块铁锰结壳样品的Pb同位素组成，获得了整个新生代的中太平洋Pb同位素演化历史。

Based on these, we will measure isotopic composition of boron in biological fossils, such as shell, foraminifer et al. producing from Ynaghu Village, Yanqing Basin, Beijing at early Quaternary and from the sediment of salt lake in Tibetan at Quaternary, and then offer a reliable boron isotopic evidence for determining their source and survival surroundings.

在此基础上对北京延庆杨户庄第四纪早期地层和青藏高原第四纪盐湖沉积产出的有孔虫、贝壳类等生物化石的硼同位素组成进行测定，为确定它们的海陆相来源及其生存环境提供硼同位素证据。

Japonica forewing and the C isotope values reflect the situation of larvae feeding period.

龟纹瓢虫前翅的C同位素值能够反映幼虫期间的取食情况，通过测算同位素值，分析结果即可了解景观格局对龟纹瓢虫幼虫期的取食影响。

The research status of the stable isotopes in the field of environmental science and the isotope fractionation is revi.

本文介绍了稳定同位素分析方法、稳定同位素分馏的研究现状及其在环境科学研究中的最新应用进展。

Effect of genetic factors on prognosis and treatment.

4不需要同位素，克服了由同位素带来的污染。

Isotope analysis of teeth can reveal clues about a person's drinking water, and in turn the climate they came from, said Jane Evans, an isotope geochemist at the BGS.

同位素牙齿分析可以揭示一个人的饮水线索，从而气候他们从哪里来，吉英说埃文斯在英国地质调查局同位素地球化学。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。