天体化学

二是天体化学其稀薄的属性会改变化学反应的过程。

The other is that the rarefied nature of astrochemistry changes the way processes work .

这是天体化学实验室的网站。

This is the website of the Astrochemistry Laboratory .

自然界锂同位素分馏强烈，这使得它在很多方面都得到了应用，如地球化学、天体化学和核工业等。

The relative large lithium isotopic fractionation in natural samples has useful application in the fields of geochemistry , cosmo-chemistry and nuclear chemistry .

含硫自由基的光谱研究在大气化学、燃烧化学以及天体化学等领域有着重要的意义。

The spectral research on sulfur-containing radicals is of great significance in many fields such as atmospheric chemistry , combustion chemistry , cosmochemistry and so on .

以近几年天体化学研究取得的一些重要成果，论述了对于认识地球的起源和演化进程的重要意义。

This paper discusses the implication of some significant achivements which have been made in recent years on cosmochemistry to the origin and evolution process of the Earth .

北京天文馆利用自身优势，成立了陨石与天体化学实验室，并以国内外陨石学研究的最新成果为依托，利用各种形式，大力进行陨石的科普工作。

With the aid of the latest discoveries in the study of meteorites , the lab is now engaged in the scientific popularization of meteorites , and uses various means to sp.

光谱分析可以定性或定量地测定天体的化学组成，通过直接或间接的方法确定天体的光度、表面温度、直径、质量、视向速度及自转。

By analyzing spectra , people can measure many chemical components and physical parameters of stellar objects , qualitatively or quantitatively , such as the chemical composition , the surface temperature , the luminosity , the diameter , the quality , the radial velocity and rotation , directly or indirectly .

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 .

例如在物理系就可以选择理论物理，技术物理，天体物理或者化学物理专业。

For instance , in the Department of Physics one has theoretical physics , technical physics , astrophysics and chemical physics to choose from .

天文学中有关天体的物理与化学性质的分支。

The branch of astronomy concerned with the physical and chemical properties of celestial bodies .

稳态和瞬态小分子远红外光谱在天体物理、大气化学和化学反应动力学等方面具有重要意义。

Far infrared laser spectroscopy of simple stable and unstable molecules plays an important role in astrophysics , atmospheric chemistry and chemical reaction dynamics .

微波辐射计通常用于地球科学、天体物理和天体化学的研究，如海洋监视、环境监测、大气探测、分子云观测、星际和星系研究等。

Generally , microwave radiometer is used to provide important information for the study of geoscience , astrophysics and astrochemistry . Such as ocean and environmental surveillance , atmosphere exploration , molecular clouds , stars formation and galactic study .

通过对天体光谱的分析，可以定性或定量地确定天体的物理、化学成分，直接或间接地测定天体的参数。

Through analyzing the celestial spectra , people can determine their physical and chemical composition qualitatively or quantitatively , and measure their parameters directly or indirectly .