A historic progress on recent studies of whether there is a possible age-metallicity relation of stars in the Galactic disk, especially in the Galactic thick disk, is reviewed in some details.
对太阳邻域内银河系盘星、特别是厚盘恒星年龄-金属度关系的研究进展作了较为详细的回顾和评述；说明目前对盘星是否确实存在年龄-金属度关系还存在争议，而厚盘恒星可能存在这种关系。
The conclusion is: the short term variability behavior provides a strong support to the thick accretion disk model of AGN.
这些讨论表明，活动星系核的短时标光变特征对厚吸积盘模型提供了强有力的支持。
The radiation pressure supported thick accretion disk model has been studied more extensively, and it seems to have some difficulties.
辐射压支持的流体厚吸积盘模型已经得到比较多的研究，看来存在一些难以解决的问题。
The structure and radiation of geometrically thick accretion disk of QSOs with magnetic field are discussed in this paper.
本文讨论了具有磁场的几何厚吸积盘结构和辐射。
The general shape of the average nebula is that of a thin circular disk somewhat thick in the center.
星云最常见的形状是中间较厚边缘较薄的圆盘。
The central part of the disk has the consistency of thick tooth paste; it is much softer than the outer part.
椎间盘的中央部分由牙膏样的浓稠物质构成，要比外层柔软的多。
The central part of the disk has the consistency of thick tooth paste; it is much softer than the outer part.
椎间盘的中央部分由牙膏样的浓稠物质构成，要比外层柔软的多。
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