trapped rare gases 捕获稀有气体
Rare gases and nitrogen mixtures 稀有气体和氮气混合物
Rare gases and oxygen mixtures 稀有气体和氧气混合物
rare gases in meteorite 陨石中的稀有气体
extraction of rare gases [化工] 稀有气体提取
the rare gases 稀有气体
Products: Highly Toxic Gases, High-Purity Gases, Rare Gases and Pyrophoric Gases.
产品：剧毒气体，高纯度气体，稀有气体和自燃气体。
Rare gases in different spheres of the earth have different characteristic isotopic ratios.
地球不同圈层的稀有气体同位素具有不同的特征同位素比值。
At present the rare gases in the vented gas of the most ammonia plants are not properly utilized in China.
鉴于我国大多数合成氨厂弛放气中稀有气体未能得到综合利用，造成资源浪费的现状。
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