contrapolarization

例句：

1. 1. During the experiment, we observed a phenomenon of contrapolarization.
   在实验过程中，我们观察到了反极化现象。
2. 2. The researchers found that the anti-cancer drug had a significant effect on the contrapolarization of cancer cells.
   研究人员发现，这种抗癌药物对癌细胞的反极化有显著影响。
3. 3. In the study, the researchers used an electromagnetic field to induce contrapolarization in thesample.
   在该研究中，研究人员使用电磁场诱导样品发生反极化。