reactivity gain

例句：

1. 1. Thenew drug has shown a significant increase inreactivity.
   这种新药显示出了显著的反应活性增加。
2. 2. The study found that the reactivity of the material was affected by thetemperature.
   研究发现，材料的响应性受温度影响。
3. 3.The researcher reported a reactivity gainof 20% in the testsample.
   研究者报告测试样本的响应性增益为20%。