这张列表是“活的”，所以我能直接对它进行更改，而不必调用父元素上的方法。
The list is "live," so I can make changes to the list directly rather than needing to call a method on the parent element.
所以放射性元素能够被我们的活细胞组织、骨骼和血液吸收，而进入人体后其辐射并未停止。
So radioactive elements can be absorbed into living tissues, bones or the blood, where they continue to give off radiation.
铁是所有细菌活细胞代谢必要的微量营养元素。
Iron is the necessary micronutrient for cellular metabolism used by almost all bacteria.
活度系数是形态分布模型中的关键性参数之一，对定量描述水、岩之间的元素迁移具有重要意义。
Activity coefficient is an important parameter in aqueous speciation models, and plays an important role in describing the mass transfer between water and rock quantitatively.
氡作为深部信息的指示元素，在活断层调查中广泛使用。
As an indicator of information come from the deep earth, radon measurement was applied widely in the active fault investigation.
氡作为深部信息的指示元素，在活断层调查中广泛使用。
As an indicator of information come from the deep earth, radon measurement was applied widely in the active fault investigation.
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