The law of characteristic X-rays emitted by target element under the radiation of isotope source in a range of low energy is discussed.
介绍了在低能范围内利用放射性同位素源发出的初级射线，照射和激发靶片元素产生的特征X射线的规律性；
One way to tell if life is the source of the gas is by measuring isotope ratios.
其中一个方法判断生活的来源是通过测量气体同位素比率。
Isotope tracer study and temperature measurement of inclusions show that the fluids in Tazhong have deep source characteristics.
同位素示踪研究及包裹体测温揭示了塔中地区流体具有深部来源特征。
The application value of traditional method to explore the oil and gas source using carbon isotope was bounded by the type and maturity of source rock.
利用气体碳同位素探索油气来源的传统方法由于受源岩类型、源岩成熟度等因素的影响，其实际应用受到很大的限制。
In recent years lead isotope tracing has been playing its unique role in studying the source and migration of heavy metals in soil.
近年来铅同位素示踪在研究土壤中相关重金属来源及其运移途径起到独特的作用。
The kinetic model of carbon isotope fractionation may have difference in the different basin, which lies on gas source condition, accumulation history and sedimentary-tectonics history.
碳同位素分馏动力学模型在不同盆地会存在差异，不仅取决于气源条件，还与聚集历史、沉积-构造史有关。
The water source, runoff response and plant water source can be researched by using these differ of isotope composition.
利用这种差异，可研究水分来源、径流响应和植物用水，本文综述了这一方面的研究和进展。
The malleabilities of various types of gas are discussed in this paper according to the carbon isotope characteristics of the gas in reservoir and gas from gas source rock.
文中还通过储层中的天然气与气源岩生成天然气之碳同位素特征的分析对比，对各类天然气的展布特征进行了探讨。
Hydrocarbon source rocks by carbon isotope analysis results showed that with the increase of carbon isotope, ethane maturity turns heavy, just smaller influenced than methane.
烃源岩热解气碳同位素分析结果表明，随成熟度增大，乙烷碳同位素随之变重，只是受影响的程度比甲烷小。
With the environmental isotope technique, the induced recharge of river water under pumping condition in water source site adjacent to the river has been probed.
利用环境同位素技术追踪傍河水源地开采条件下的河水激发补给过程和补给强度。
According to the characteristics of trace elements and isotope, the source of the basalt is similar to the OIB source.
微量元素和同位素特征显示，玄武岩起源于与洋岛玄武岩源区相似的富集地幔源。
Moreover, as one of major ore-forming elements, copper isotope composition can directly trace ore-metal source and ore-forming process.
并且，由于铜是主要成矿元素之一，所以铜同位素对于成矿物质来源和成矿过程的示踪更为直接。
Qin et al raised some related questions once again and stressed that lead isotope analyses could not reveal the source information of copper, tin or lead in bronze research.
《范铸》一文再次提出有关问题，认为铅同位素分析结果不能确切指示青铜器铜锡铅原料的来源信息。本文考察了其依据的实验数据，它们似乎与其观点互相矛盾，其结论说服力相当有限。
The influence of radioactive source decay on measuring error of the isotope instruments is analysed. The valuable conclusion for designing the circuit of instrument is obtained.
分析了采用不同率表电路的同位素仪表因放射源的衰减而对仪表测量误差的影响，得出了对仪表电路设计有参考价值的结论。
Different forms of carbon isotope values reflect the changes of carbon in the river between the karst areas and the non-karst areas, which provides a foundation to study the source of carbon.
不同形态的碳同位素值反映了岩溶区和非岩溶区河流中碳的变化，为研究碳的来源提供了一定的依据。
Geological features, mineralizing periods, fluid inclusions and s, H, o isotope compositions are discussed to identify ore-forming source and temperature.
通过对矿床地质特征、成矿期次及硫、氢、氧同位素组成和流体包裹体测温研究，讨论了成矿流体的来源及矿床形成的温度。
The composition of carbon isotope has the characteristics of carbon of deep seated source.
在碳同位素组成上具深源碳特征。
The composition of sulfur isotope has the characteristics of the sulfur of deep seated magma source.
在硫同位素组成上具深源岩浆源硫特征。
Based on the research of isotope ratios of lead, sulfur, oxygen and carbon in the ores and rocks of this area, it is held that Qinglongcun Group serve as the source bed of gold.
通过对矿区矿石、岩石中铅、硫、氧同位素组成研究，查明青龙村群为金的矿源层。
Sulfur isotope studies demonstrate that sulfur was derived from the mantle, and oxygen isotope analyses reveal that the fluid of the deposit was a mixed source of magmatic water and atmospheric water.
同位素研究表明，矿层中硫来源于地幔，而氧同位素则显示其成矿过程有大气降水的参与。
The carbon isotope correlation between ethane in the natural gases and source rock kerogens shows that the gases in the reservoirs were mainly derived from Permian strata.
天然气乙烷碳同位素与各层系烃源岩干酪根碳同位素值对比结果揭示普光气田天然气主要来自二叠系烃源层。
The carbon isotope correlation between ethane in the natural gases and source rock kerogens shows that the gases in the reservoirs were mainly derived from Permian strata.
天然气乙烷碳同位素与各层系烃源岩干酪根碳同位素值对比结果揭示普光气田天然气主要来自二叠系烃源层。
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