基本释义:

贫金属星团

网络释义

1)low metallicity cluster,metal poor cluster,贫金属星团

2)low-grade gold ores,贫金矿

3)poor-metal,贫金属

4)metal poor stars,贫金属星

5)metal-poor stars,贫金属星

6)metal poor star,贫金属星

用法和例句

By means of the component coefficient equation and the updated data of abundances of the solar system, we calculate the element abundances of 64 poor-metal stars.

利用分量系数公式并结合太阳系元素丰度的最新数据 ,计算了 6 4颗贫金属星的中子俘获元素丰度 。

Using the model of determining the relative contributions from different nucleosynthesis processes to the abundances of the heavy elements in metal poor stars,we calculate the component coefficients of 30 sample stars.

利用贫金属星中子俘获元素丰度的模型计算了 30颗样品星的分量系数 ,并详细分析了弱 s过程分量系数 C2 小于零的各种可能原

Based on our model to compute the heavy element abundances in metal poor stars, the authors study the heavy element abundance distributions in 21 metal poor stars published in 1999.

在提出的贫金属星中子俘获元素丰度的计算模型基础上研究 1 999年新发表的 2 1颗贫金属星的中子俘获元素丰度分布 。

Based on the model of computing the abundances of the heavy elements in metal poor stars,we study the influence of the errors due to the typical heavy element abundance on the three component coefficients in 18 metal poor stars,the upper and lower limits of the component coefficients are calculated.

根据贫金属星中子俘获元素丰度的计算模型 ,研究了典型中子俘获元素丰度的观测误差对代表各核合成过程相对贡献的分量系数的影响 ,给出了分量系数的变化范

Comparison of the methods of calculating the abundances of heavy elements in metal-poor stars;

计算贫金属星重元素丰度分布方法的比较

Component proportions of the abundances of three typical heavy elements in metal-poor stars;

贫金属星三种典型重元素丰度的分量比例

Brief summary on the one hoteltopic of nuclear astrophysics-study methods,history,current situation and present problems of the heavy element abundances in metal-poor stars is presented in this paper.

简要综述了核天体物理学热点课题———贫金属星重元素丰度的研究方法、历史、现状及存在的问题 ,指出了该领域今后的主攻方向。

Based on the observed abundances of several typical elements and the conclusions of the heavy elemental nucleosynthesis theory and the galactic chemical evolution theory, the authors suggest a method to determine the relative contributions from the inpidual neutron capture processes to the abundances of heavy elements in metal poor stars.

利用这种方法计算了贫金属星ＨＤ６２６４４ 、ＨＤ１２６２３８和ＨＤ１８４７１１ 的重元素丰度，并将计算结果与观测结果进行了比较、分析和讨论了计算结果的物理意