星系化学演化也是天文学者一直关心的问题。
The chemical evolution of galaxies is a long-interesting problem for astrophysicist.
钡星对于重元素核合成及星系化学演化的研究都有非常重要的意义。
It is very significant to Ba stars for heavy-element nucleosynthesis and Galactic chemical evolution.
两个地质时代岩石平均成分的差异，是化学演化真实存在的重要证据。
The difference in average composition between the rocks of two different geologic ages provides the important evidence for the actual occurrence of chemical evolution.
主要的电流的假说是生活在早期就自然地通过化学演化的物质从生物。
The major current hypothesis holds that life arose spontaneously on the early earth by means of chemical evolution from nonliving substances.
利用水化学、同位素调查的方法，对宁南清水河平原地下水的水化学演化规律进行了研究。
The hydrochemical and isotope charateristics of groundwater in Qingshuihe plain was studied by the methods of hydrochemical and isotope investigation.
根据传统的假说，最初的活细胞，肇生于数十亿年前地球上的化学演化过程，这种说法称为无生源说。
According to the conventional hypothesis, the earliest living cells emerged as a result of chemical evolution on our planet billions of years ago in a process called abiogenesis.
有关PGE比值不仅可以反映出元素的地球化学行为，亦可区分或指示不同环境下pge地球化学演化的规律性。
PGE ratios can not only show the geochemistry action of platinum-group element, but also explain the geological evolution rules of PGE in different environment.
恒星元素丰度是探讨银河系化学演化的重要探针，分析不同星族成分的元素丰度是研究银河系结构和化学演化的重要课题。
Analysis about the abundance in different stellar populations is a very important subject in study of the structure and chemical evolution of the Galaxy.
贫金属星的中子俘获元素丰度与恒星的形成和演化密切相关，它为研究星系形成早期的历史背景和化学演化提供了重要信息。
The abundances of neutron-capture elements in metal-poor stars, tightly related to the star formation and evolution, provide important clues to the chemical evolution of the Galaxy.
神召教授的发现为物空相对论理论的星系演化学说间接提供了观测依据。
God called the discovery of material empty Professor relativity theory, theory of galaxy evolution based on the observation indirectly.
地球上生命的化学进化与非生物部分的早期演化过程，是密切地相互关联、相互作用并相互制约的。
The chemical evolution of life and the early evolution of the earth's lifeless components constituted a set of interrelated, interactive and restricted processes.
从雅山花岗岩岩石结构构造、矿物成分、化学成分等变化规律分析研究入手，探讨雅山花岗岩类的演化与钽锂矿床成生关系。
Based on the analysis and research of AGB granite rock texture, mineral composition, chemical components, we explore the evolution of granitoids and tantalum lithium deposits relationship.
并依据各单元的矿物成分、化学成分、微量元素含量的变化，重新厘定了岩浆的演化顺序。
And according to the mineral composition, chemical composition and trace element content, the evolution series of the magma is redefined.
地球化学省是区域岩石圈演化过程中形成的，是具有共同成因的、一定规模的地质单元的地球化学表现。
The geochemical province, formed in the course of regional lithospheric evolution, is characterized by geological units with common origin and certain sizes.
企业进化理论是在生物进化学说、组织生态学和演化经济学等理论的基础上所逐渐形成的一种新型企业理论。
Evolutionary theory of enterprises is a new kind of theory based on biological evolutionary theory, organizational ecology and evolutionary theory of economics, etc.
这些观点，与现代宇宙演化学说在基本原理上是相通的。
These views, basically, are similar to modern theories on the evolution of the cosmos.
可见水-岩作用模拟结果有助于揭示研究区地下水化学环境的演化机制。
Thus the results of modeling of water-rock interaction are conducive to revealing the evolution mechanism of the groundwater chemical environment in the study area.
交换性阳离子组成、养分全量及速效含量可作为评价红粘土红壤化学肥力演化的指标。
The composition of exchangeable cation and the soil nutrient content can be used as the indexes to evaluate soil chemical fertility evolution, especially the former is more important.
在第一部分引言中，说明现代恒星演化学说的分歧主要是在恒星形成主序星以后的演化。
In the first introductory part it is pointed out that the main difference among current theories of stellar evolution is in the evolutionary stage after stars move onto the main sequence.
俯冲带流体循环及伴随的化学作用是壳幔演化和物质交换的重要机制。
Cycling processes and simultaneous chemical reactions of fluids in subduction zones play an important role in the evolutions of Earth crust and mantle and in the substance exchange.
本文在野外调查与室内试验的基础上，重点研究了关中盆地浅层地下水水化学场时空演化及其相关环境问题。
Based on field survey and indoor experiments, the paper mainly researches the evolution of groundwater chemical field in time and space in Guanzhong Basin and related environmental problems.
三种地球化学系列锡矿床的形成与地壳及地球的演化有密切的关系。
The formation of tin deposits of the three series could be closely related to the evolution of the Earth's crust.
沉没事件是碳酸盐岩台地发育、演化终止的一个重要标志，它具有特定的地质、地球化学及地震反射特征。
The drowning event is a key marker representing the termination of carbonate platform development and has some features of geology, geochemistry and seismic reflection.
自由基分子及分子离子光谱在天体演化、化学反应动力学、医学等方面具有重要意义。
Free radicals and molecular ions play an important role in the study of interstellar medium, chemical reaction dynamics and medicines.
利用岩石地球化学的可示踪性，研究了高镁火山岩浆的源区特征、岩浆演化。
Using the tracer ability of petrogeochemistry, the paper discusses on source characteristics and magma evolution of the high-Mg volcanic rocks.
根据宣城沸石化学成分、可交换阳离子组成和热处理晶体结构演化，判断宣城沸石为富钙斜发沸石，具有低热稳定性的特点。
According to chemical composition, exchangeable cation and thermal behaviors of crystal structure, Xuancheng zeolite should belong to calcium-rich clinoptilolite with low thermal stability.
本文通过岩溶特征分析和模拟试验研究，探索了岩溶形成演化环境及水文地球化学和水动力学蚀变模型。
Through the analysis of karst characters and study of simulated tests, the paper explores environment of formation and evolution of karst and hydrogeochemistry and hydrodynamic alteration model.
从而为正确认识古特提斯洋的演化和盆山转换过程提供了强有力的地球化学证据。
This provides strong geochemical evidences for correctly understanding the evolution of the old Tethys and the basin range transition.
从而为正确认识古特提斯洋的演化和盆山转换过程提供了强有力的地球化学证据。
This provides strong geochemical evidences for correctly understanding the evolution of the old Tethys and the basin range transition.
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