squared atom

例句：

1. 1. The squared atom model is a popular theory in quantum mechanics.
   平方原子模型是量子力学中一个流行的理论。
2. 2. The structure of the squared atom was determined by X-ray crystallography.
   通过X射线晶体学确定了平方原子的结构。
3. 3. The squared atom theory has been widely accepted by scientists as a fundamental understanding of the atomic structure.
   科学家普遍接受的平方原子理论是对原子结构的基本理解。