critical nucleus size

例句：

1. 1.The researchers found that the critical nucleus size for this material was very small.
   研究人员发现这种材料的临界核大小非常小。
2. 2.In the study, the critical nucleus size was determined by measuring the energy levels of the atoms.
   在该研究中，通过测量原子的能量级别来确定临界核大小。
3. 3. The engineers were concerned about the potential impact on the critical nucleus size during the construction process.
   工程师们担心施工过程中可能对临界核大小产生影响。