族组成 meaning in Chinese

groucomposition

A plural society is one composed of numerous races
一个多元社会是一个由多种族组成的社会。
Method for hydrocarbon types analysis of gasoline by mass spectrometry
汽油族组成质谱分析方法
Chemical group composition
汽油的化学族组成
Method for aromatic types analysis of gas - oils aromatic fractios by mass spectrometry
重馏份石油芳香烃族组成质谱分析方法
Method for hydrocarbon types analysis of gas - oil saturates fraction by mass spectrometry
重馏份石油饱和烃族组成质谱分析方法

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