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大家在搜：盘族背景场星族合成矮椭球星系平均空间贴膏剂关节扭伤活血止痛散应力性骨折护踝

晕族

网络halo population

晕族

1

这种方法最初是利用元素对Th/Nd来确定G矮星的年龄，近年来开始利用元素对Th/Eu和U/Th来确定晕族场星和球状星团内恒星的年龄。

At first , this age-dating approach was used to estimate the age of G-dwarf stars with Th / Nd chronometry . Recently , it has been used to evaluate the age of halo field stars and globular cluster stars with the Th / Eu and U / Th chronometers .

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