two dose survival curve

例句：

1. 1.The researchers used a two-dose survival curve to analyze the data.
   研究人员使用双剂量生存曲线来分析数据。
2. 2.The study found that the two-dose survival curve was effective in reducing the risk of infection.
   研究发现，双剂量生存曲线在降低感染风险方面是有效的。
3. 3. The two-dose survival curve showed that the vaccine was more effective in preventing COVID-19 than the previous one.
   双剂量生存曲线显示，疫苗在预防COVID-19方面比前一种更有效。