internal-conversion pair

例句：

1. 1. The internalconversion pair of a battery is crucial for its operation.
   电池的内部转换对对其工作至关重要。
2. 2.In the study of quantum physics, understanding the internal conversion pair is essential.
   在量子物理学研究中，理解内部转换对是至关重要的。
3. 3. The researchers found that the internal conversion pair in this material was significantly different from that in other materials.
   研究人员发现这种材料的内部转换对与其它材料显著不同。