And if we're talking about atomic radius, essentially we're talking about atomic size.

如果我们在讨论原子半径，实际上我们讨论的是原子的尺寸。

麻省理工公开课 - 化学原理课程节选

Kids younger than age 12 are prioritized for donations from other kids of similar age and size within a 1, 000-mile radius.

CNN: Dying girl's plight sparks fight over organ transplants

For instance, the NRC justifies its one-size-fits-all, 10-mile-radius emergency evacuation zone by arguing that evacuations could be expanded in a serious accident.

CNN: Our reactors still vulnerable, a year after Fukushima