The range of the initial metallicity in which lead stars can be formed is -3.4,-0.9.
铅星形成的金属丰度范围为一3.4成Fe/H」毛一0.9。
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以上来源于: WordNet
Three generations of stars may exist based on metallicity.
以金属度划分,恒星有三个世代。
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One clue comes from the metallicity of the disc's constituent stars.
一条线索来自于主盘内恒星的金属丰度。
Different theories predict how this metallicity gradient changes over billions of years.
已有几种不同的理论对金属丰度梯度在亿万年间如何变化作了推测。
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