原子物理学是原子中电子云的物理学.

Atomic physics ( or atom physics ) is physics of the electron hull of atoms.

原子物理学是原子中电子云的物理学。

Atomic physics (or atom physics ) is physics of the electron hull of atoms.

谱线的发现和深入研究标志着原子物理学的开端.

The beginning of atomic physics is marked by the discovery and scrutinious study of spectral lines.

他的专门研究范围是原子物理学.

His area of concentration is nuclear physics.

里德堡原子由于其在外场中独特的性质而成为原子物理学中研究的焦点。

One is interested in the study of Rydberg atoms because of its particular characteristics in external field.