chemical abundance

基本解释

With the crustal model and the petrochemical data, the average chemical composition and the abundance of major elements in Xinjiang crust are calculated and…
在地壳模型和岩石化学资料基础上，计算和研究了新疆地壳的平均化学成分和主要元素丰度。
With the crustal model and the petrochemical data, the average chemical composition and the abundance of major elements in Xinjiang crust are calculated and explored.
在地壳模型和岩石化学资料基础上，计算和研究了新疆地壳的平均化学成分和主要元素丰度。
Analysis about the abundance in different stellar populations is a very important subject in study of the structure and chemical evolution of the Galaxy.
恒星元素丰度是探讨银河系化学演化的重要探针，分析不同星族成分的元素丰度是研究银河系结构和化学演化的重要课题。

Particularly if equipped with chemical or biological weapons (which the Syrians and Iranians have in abundance), such missiles would pose a mortal threat to Israel and her people.
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