| 1. | Does it show evidence of geologic activity or organic chemical evolution 有没有地质活动或有机物质演化的证据? |
| 2. | It is very significant for ba stars to heavy - element nucleosfynthesis and galactic chemical evolution 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。 |
| 3. | A new model is developed to study the star formation and chemical evolution in globular clusters ( gcs ) in this thesis 本文对银河系球状星团中的恒星形成及化学演化进行了研究。 |
| 4. | The aim of the galaxy chemical evolution research is to reproduce the element abundance patter of stars and gas in the galaxy 银河系化学演化研究的任务,从根本来说,是重现银河系中恒星与气体的元素丰度分布图象。 |
| 5. | 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 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。 |
| 6. | According to temperature , pressure , and chemical evolution of mineral crystallization in the magma chamber , it is held that the magma of intrusive rocks ascended rather fast and was emplaced at the relatively shallow place 据岩浆房中矿物结晶时的温度和压力条件、矿物的结晶特征及演化趋势,推测岩浆上升速度较快,侵位较浅。 |
| 7. | Sliding face soil , which is the result of geological history development with a complicated physical and chemical evolution , contains rich information about deformation features and environment of the landslide 滑坡滑动带土是滑坡地质历史发展过程的产物,它的形成经历了一个复杂的物理化学演化的动力地质作用过程,它蕴含着滑坡动态变形特性和赋存环境丰富的信息。 |
| 8. | There are several aspects in galactic evolution , such as dynamicas evolution , chemical evolution and thermal evolution , etc . they provide reasonable explaination of the formation and evolution of galaxies in different facets 银河系的形成与演化是天体物理学研究的重大前言课题,银河系演化的研究包括诸多方面,如动力学演化、化学演化、热演化等,分别从不同的角度对银河系的形成和演化过程加以阐释。 |
| 9. | Among the evolution is the chemical evolution of the galaxy showing its exceeding importance . the recognize to the galaxy chemical evolution build up the basement of understanding the whole galaxy evolution . and it can restrict and constrain the evolution and ncleosyhthesis of the stellar 其中银河系的化学演化在其中更是具有极其重要的地位,对银河系化学演化的认识是理解整个银河系演化的基础,并对恒星演化与核合成理论提供约束。 |
| 10. | Our model introduces the general equations of chemical evolution used in galaxies to studies of gcs . in this model the important gas outflow caused by the supernova explosion and other processes during the formation of globular clusters is included . based on such a self - enrichment model , monte carlo method is used to simulate the formation and chemical evolution of globular cluster systems , from which a new explanation of the bimodal metallicity distribution can be given 本文把星系演化中通用的化学演化方程引入到球状星团这一系统中来,特别考虑到球状星团中恒星形成过程中超新星爆发等因素引发的气体外流,把这一重要的物理过程包含到化学演化方程中,并用蒙特卡罗方法来模拟球状星团系统的自增丰演化。 |