In this thesis, we study the relation between the critical accretion rate and the metallicity via AGB stars approach.
在本文中我们通过agb星研究了此临界吸积率和金属丰度之间的关系。
Among them, the interpolation model selection of climatic data and analysis of AGB models are the keys to this study.
其中，气象要素空间插值模型的选择和草地地上生物量遥感监测模型的分析是本研究的关键。
The evolution characters of post-AGB stars often appear to be constant luminosity, and great increase of their surface temperature.
AGB星常常表现为光度不变、表面温度大大增加的演化特征。
Using the solution of S process chain with an exponential neutron irradiation the S process abundance distribution of AGB stars of different metallicities is investigated.
利用指数辐照理论的解析解研究了AGB星S过程元素的丰度分布规律。
Since AGB superwind only occurs at the final stage of AGB stars, it may allow the degenerate core of intermediate-mass AGB star to reach the Chandresekhar mass before the AGB superwind.
因为AGB超星风仅仅发生在AGB的最后阶段，所以在超星风发生重要作用之前，中等质量AGB的简并核可以达到钱德拉塞卡极限。
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.
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.
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。
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