fully invariant series

例句：

1. 1.The fully invariant series of the periodic table is crucial for understanding the properties of elements.
   周期表的完全不变系列对于理解元素的属性至关重要。
2. 2. The fully invariant series of the periodic table is used to predict the behavior of atoms and molecules.
   周期表的完全不变系列用于预测原子和分子的行为。
3. 3.The fully invariant series of the periodic table is used to study the chemical reactions that occur in living organisms.
   周期表的完全不变系列用于研究生命体中发生的化学反应。